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31013413004 = 2272179307747
BaseRepresentation
bin11100111000100010…
…110010000010001100
32222001101012121200002
4130320202302002030
51002003413204004
622125233023432
72145353442500
oct347042620214
988041177602
1031013413004
1112175299242
1260163b4b78
132c0331a472
141702c88300
15c17aa961e
hex7388b208c

31013413004 has 36 divisors (see below), whose sum is σ = 66848246136. Its totient is φ = 12509610624.

The previous prime is 31013412917. The next prime is 31013413019. The reversal of 31013413004 is 40031431013.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4650542 + ... + 4657205.

It is an arithmetic number, because the mean of its divisors is an integer number (1856895726).

Almost surely, 231013413004 is an apocalyptic number.

31013413004 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31013413004 is an abundant number, since it is smaller than the sum of its proper divisors (35834833132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31013413004 is a wasteful number, since it uses less digits than its factorization.

31013413004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9307782 (or 9307773 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31013413004 its reverse (40031431013), we get a palindrome (71044844017).

The spelling of 31013413004 in words is "thirty-one billion, thirteen million, four hundred thirteen thousand, four".

Divisors: 1 2 4 7 14 17 28 34 49 68 98 119 196 238 476 833 1666 3332 9307747 18615494 37230988 65154229 130308458 158231699 260616916 316463398 456079603 632926796 912159206 1107621893 1824318412 2215243786 4430487572 7753353251 15506706502 31013413004