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31400507351 = 435919876229
BaseRepresentation
bin11101001111100111…
…011011011111010111
310000001100121001021202
4131033213123133113
51003302012213401
622231501503115
72161063623443
oct351747333727
9100040531252
1031400507351
1112353849a24
126103b71a9b
132c65590785
14173c44d823
15c3ba6e06b
hex74f9db7d7

31400507351 has 16 divisors (see below), whose sum is σ = 32697033600. Its totient is φ = 30130416288.

The previous prime is 31400507329. The next prime is 31400507399. The reversal of 31400507351 is 15370500413.

It is a cyclic number.

It is not a de Polignac number, because 31400507351 - 210 = 31400506327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400501351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5037905 + ... + 5044133.

It is an arithmetic number, because the mean of its divisors is an integer number (2043564600).

Almost surely, 231400507351 is an apocalyptic number.

31400507351 is a deficient number, since it is larger than the sum of its proper divisors (1296526249).

31400507351 is a wasteful number, since it uses less digits than its factorization.

31400507351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8318.

The product of its (nonzero) digits is 6300, while the sum is 29.

The spelling of 31400507351 in words is "thirty-one billion, four hundred million, five hundred seven thousand, three hundred fifty-one".

Divisors: 1 43 59 1987 2537 6229 85441 117233 267847 367511 5041019 12377023 15802973 532211989 730244357 31400507351