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31044424012 = 22715126712749
BaseRepresentation
bin11100111010011001…
…000101000101001100
32222010112120010202221
4130322121011011030
51002034333032022
622132301425124
72146211151550
oct347231050514
988115503687
1031044424012
111219084a278
12602486b1a4
132c09887684
14170703b860
15c1a682cc7
hex73a64514c

31044424012 has 48 divisors (see below), whose sum is σ = 62546176000. Its totient is φ = 13206888000.

The previous prime is 31044424003. The next prime is 31044424027. The reversal of 31044424012 is 21042444013.

It is a super-2 number, since 2×310444240122 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11291614 + ... + 11294362.

Almost surely, 231044424012 is an apocalyptic number.

It is an amenable number.

31044424012 is an abundant number, since it is smaller than the sum of its proper divisors (31501751988).

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

31044424012 is a wasteful number, since it uses less digits than its factorization.

31044424012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582 (or 5580 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 31044424012 its reverse (21042444013), we get a palindrome (52086868025).

The spelling of 31044424012 in words is "thirty-one billion, forty-four million, four hundred twenty-four thousand, twelve".

Divisors: 1 2 4 7 14 28 151 302 604 1057 2114 2671 2749 4228 5342 5498 10684 10996 18697 19243 37394 38486 74788 76972 403321 415099 806642 830198 1613284 1660396 2823247 2905693 5646494 5811386 7342579 11292988 11622772 14685158 29370316 51398053 102796106 205592212 1108729429 2217458858 4434917716 7761106003 15522212006 31044424012