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401363231 = 31113114577
BaseRepresentation
bin10111111011000…
…101000100011111
31000222020100211212
4113323011010133
51310222110411
6103454335035
712642350123
oct2773050437
91028210755
10401363231
11196617155
12b24ba47b
13651cac49
143b43b583
152538268b
hex17ec511f

401363231 has 8 divisors (see below), whose sum is σ = 417980544. Its totient is φ = 384975360.

The previous prime is 401363203. The next prime is 401363233. The reversal of 401363231 is 132363104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 401363231 - 26 = 401363167 is a prime.

It is a super-2 number, since 2×4013632312 = 322184886397518722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401363197 and 401363206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401363233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53786 + ... + 60791.

It is an arithmetic number, because the mean of its divisors is an integer number (52247568).

Almost surely, 2401363231 is an apocalyptic number.

401363231 is a deficient number, since it is larger than the sum of its proper divisors (16617313).

401363231 is a wasteful number, since it uses less digits than its factorization.

401363231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114721.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 401363231 is about 20034.0517868952. The cubic root of 401363231 is about 737.6423816262.

The spelling of 401363231 in words is "four hundred one million, three hundred sixty-three thousand, two hundred thirty-one".

Divisors: 1 31 113 3503 114577 3551887 12947201 401363231