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31379414388028 = 22749919991123501
BaseRepresentation
bin1110010001010000101101…
…10110010000110100111100
311010002211202100020010002221
413020220112312100310330
513103110020040404103
6150423300504455124
76416042066256640
oct710502666206474
9133084670203087
1031379414388028
119aa8a313a9393
12362965a47a4a4
1314680b223c825
147a6ab39d0c20
153963b5a931bd
hex1c8a16d90d3c

31379414388028 has 48 divisors (see below), whose sum is σ = 62916112000000. Its totient is φ = 13414643928000.

The previous prime is 31379414387929. The next prime is 31379414388037. The reversal of 31379414388028 is 82088341497313.

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, 27368278 + ... + 28491778.

Almost surely, 231379414388028 is an apocalyptic number.

It is an amenable number.

31379414388028 is an abundant number, since it is smaller than the sum of its proper divisors (31536697611972).

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

31379414388028 is a wasteful number, since it uses less digits than its factorization.

31379414388028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126010 (or 1126008 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 61.

The spelling of 31379414388028 in words is "thirty-one trillion, three hundred seventy-nine billion, four hundred fourteen million, three hundred eighty-eight thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 499 998 1996 1999 3493 3998 6986 7996 13972 13993 27986 55972 997501 1123501 1995002 2247002 3990004 4494004 6982507 7864507 13965014 15729014 27930028 31458028 560626999 1121253998 2242507996 2245878499 3924388993 4491756998 7848777986 8983513996 15697555972 15721149493 31442298986 62884597972 1120693371001 2241386742002 4482773484004 7844853597007 15689707194014 31379414388028