freecodecamp--freecodecamp/curriculum/challenges/english/blocks/daily-coding-challenges-python/69cfca90e8a0a6d4d6871c52.md

id, title, challengeType, dashedName

id	title	challengeType	dashedName
69cfca90e8a0a6d4d6871c52	Challenge 268: Narcissistic Number	29	challenge-268

--description--

Given a positive integer, determine whether it is a narcissistic number.

• A number is narcissistic if the sum of each of its digits raised to the power of the total number of digits equals the number itself.

For example, 153 has 3 digits, and 1³ + 5³ + 3³ = 153, so it is narcissistic.

--hints--

is_narcissistic(153) should return True.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_narcissistic(153), True)`)
}})

is_narcissistic(154) should return False.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_narcissistic(154), False)`)
}})

is_narcissistic(371) should return True.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_narcissistic(371), True)`)
}})

is_narcissistic(512) should return False.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_narcissistic(512), False)`)
}})

is_narcissistic(9) should return True.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_narcissistic(9), True)`)
}})

is_narcissistic(11) should return False.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_narcissistic(11), False)`)
}})

is_narcissistic(9474) should return True.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_narcissistic(9474), True)`)
}})

is_narcissistic(6549) should return False.

({test: () => { runPython(`
from unittest import TestCase
TestCase().assertIs(is_narcissistic(6549), False)`)
}})

--seed--

--seed-contents--

def is_narcissistic(n):

    return n

--solutions--

def is_narcissistic(n):
    digits = str(n)
    power = len(digits)
    return sum(int(d) ** power for d in digits) == n