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31044013412 = 2217456529609
BaseRepresentation
bin11100111010010111…
…100000110101100100
32222010111210021112112
4130322113200311210
51002034231412122
622132244540152
72146204521506
oct347227406544
988114707475
1031044013412
1112190599835
1260246b1658
132c09772809
141706d71d76
15c1a6012e2
hex73a5e0d64

31044013412 has 12 divisors (see below), whose sum is σ = 57522730860. Its totient is φ = 14608947456.

The previous prime is 31044013411. The next prime is 31044013423. The reversal of 31044013412 is 21431044013.

It can be written as a sum of positive squares in 2 ways, for example, as 20066422336 + 10977591076 = 141656^2 + 104774^2 .

It is not an unprimeable number, because it can be changed into a prime (31044013411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228264737 + ... + 228264872.

It is an arithmetic number, because the mean of its divisors is an integer number (4793560905).

Almost surely, 231044013412 is an apocalyptic number.

It is an amenable number.

31044013412 is a deficient number, since it is larger than the sum of its proper divisors (26478717448).

31044013412 is a wasteful number, since it uses less digits than its factorization.

31044013412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456529630 (or 456529628 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31044013412 its reverse (21431044013), we get a palindrome (52475057425).

The spelling of 31044013412 in words is "thirty-one billion, forty-four million, thirteen thousand, four hundred twelve".

Divisors: 1 2 4 17 34 68 456529609 913059218 1826118436 7761003353 15522006706 31044013412