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401313406 = 21338939679
BaseRepresentation
bin10111111010111…
…000111001111110
31000222010211111111
4113322320321332
51310214012111
6103453312234
712642051634
oct2772707176
91028124444
10401313406
1119659277a
12b249567a
13651b1370
143b427354
1525372a21
hex17eb8e7e

401313406 has 16 divisors (see below), whose sum is σ = 649958400. Its totient is φ = 184740768.

The previous prime is 401313377. The next prime is 401313413. The reversal of 401313406 is 604313104.

It is a super-2 number, since 2×4013134062 = 322104899670641672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9726 + ... + 29953.

It is an arithmetic number, because the mean of its divisors is an integer number (40622400).

Almost surely, 2401313406 is an apocalyptic number.

401313406 is a deficient number, since it is larger than the sum of its proper divisors (248644994).

401313406 is a wasteful number, since it uses less digits than its factorization.

401313406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40083.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 401313406 is about 20032.8082404839. The cubic root of 401313406 is about 737.6118568631.

The spelling of 401313406 in words is "four hundred one million, three hundred thirteen thousand, four hundred six".

Divisors: 1 2 13 26 389 778 5057 10114 39679 79358 515827 1031654 15435131 30870262 200656703 401313406