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31044424120 = 2355923575581
BaseRepresentation
bin11100111010011001…
…000101000110111000
32222010112120010220221
4130322121011012320
51002034333032440
622132301425424
72146211152063
oct347231050670
988115503827
1031044424120
111219084a366
12602486b274
132c09887738
14170703b8da
15c1a682d4a
hex73a6451b8

31044424120 has 64 divisors (see below), whose sum is σ = 71076722400. Its totient is φ = 12199933440.

The previous prime is 31044424109. The next prime is 31044424153. The reversal of 31044424120 is 2142444013.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5559730 + ... + 5565310.

Almost surely, 231044424120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31044424120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35538361200).

31044424120 is an abundant number, since it is smaller than the sum of its proper divisors (40032298280).

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

31044424120 is a wasteful number, since it uses less digits than its factorization.

31044424120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8008 (or 8004 counting only the distinct ones).

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

Adding to 31044424120 its reverse (2142444013), we get a palindrome (33186868133).

The spelling of 31044424120 in words is "thirty-one billion, forty-four million, four hundred twenty-four thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 59 118 236 295 472 590 1180 2357 2360 4714 5581 9428 11162 11785 18856 22324 23570 27905 44648 47140 55810 94280 111620 139063 223240 278126 329279 556252 658558 695315 1112504 1317116 1390630 1646395 2634232 2781260 3292790 5562520 6585580 13154417 13171160 26308834 52617668 65772085 105235336 131544170 263088340 526176680 776110603 1552221206 3104442412 3880553015 6208884824 7761106030 15522212060 31044424120