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31026640156014 = 2315983932351971
BaseRepresentation
bin1110000110111111100111…
…10111010111010101101110
311001212010011220021022212010
413003133303313113111232
513031320024334443024
6145553235224422050
76351413031624456
oct703376367272556
9131763156238763
1031026640156014
119982362561508
123591207017926
131440a519968c9
147939a9924d66
1538c11a1e4b29
hex1c37f3dd756e

31026640156014 has 16 divisors (see below), whose sum is σ = 62053670453760. Its totient is φ = 10342148361720.

The previous prime is 31026640155983. The next prime is 31026640156021. The reversal of 31026640156014 is 41065104662013.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15216952 + ... + 17135019.

It is an arithmetic number, because the mean of its divisors is an integer number (3878354403360).

Almost surely, 231026640156014 is an apocalyptic number.

31026640156014 is an abundant number, since it is smaller than the sum of its proper divisors (31027030297746).

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

31026640156014 is a wasteful number, since it uses less digits than its factorization.

31026640156014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32511815.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 31026640156014 in words is "thirty-one trillion, twenty-six billion, six hundred forty million, one hundred fifty-six thousand, fourteen".

Divisors: 1 2 3 6 159839 319678 479517 959034 32351971 64703942 97055913 194111826 5171106692669 10342213385338 15513320078007 31026640156014