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31143627112980 = 22355059310259531
BaseRepresentation
bin1110001010011001100001…
…10101001100001000010100
311002021022010220212111100010
413011030300311030020110
513040224122020103410
6150123103525120220
76363024053432034
oct705146065141024
9132238126774303
1031143627112980
119a17a35657818
1235aba15859070
13144baa6880a75
14799506a2b8c4
153901b58cbc20
hex1c5330d4c214

31143627112980 has 48 divisors (see below), whose sum is σ = 87203888017344. Its totient is φ = 8304802268160.

The previous prime is 31143627112963. The next prime is 31143627112991. The reversal of 31143627112980 is 8921172634113.

It is a congruent number.

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, 2094186 + ... + 8165345.

It is an arithmetic number, because the mean of its divisors is an integer number (1816747667028).

Almost surely, 231143627112980 is an apocalyptic number.

31143627112980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31143627112980 is an abundant number, since it is smaller than the sum of its proper divisors (56060260904364).

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

31143627112980 is a wasteful number, since it uses less digits than its factorization.

31143627112980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10310136 (or 10310134 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 31143627112980 in words is "thirty-one trillion, one hundred forty-three billion, six hundred twenty-seven million, one hundred twelve thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 50593 101186 151779 202372 252965 303558 505930 607116 758895 1011860 1517790 3035580 10259531 20519062 30778593 41038124 51297655 61557186 102595310 123114372 153892965 205190620 307785930 615571860 519060451883 1038120903766 1557181355649 2076241807532 2595302259415 3114362711298 5190604518830 6228725422596 7785906778245 10381209037660 15571813556490 31143627112980