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31430672476 = 2272971377827
BaseRepresentation
bin11101010001011010…
…100000000001011100
310000010110100121001121
4131101122200001130
51003332223004401
622234500220324
72161611210430
oct352132400134
9100113317047
1031430672476
1112369882485
12611209a6a4
132c6b8c2968
1417424629c0
15c3e52bca1
hex7516a005c

31430672476 has 24 divisors (see below), whose sum is σ = 62882669696. Its totient is φ = 13465718640.

The previous prime is 31430672467. The next prime is 31430672503. The reversal of 31430672476 is 67427603413.

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, 105726 + ... + 272101.

Almost surely, 231430672476 is an apocalyptic number.

It is an amenable number.

31430672476 is an abundant number, since it is smaller than the sum of its proper divisors (31451997220).

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

31430672476 is a wasteful number, since it uses less digits than its factorization.

31430672476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380809 (or 380807 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 43.

The spelling of 31430672476 in words is "thirty-one billion, four hundred thirty million, six hundred seventy-two thousand, four hundred seventy-six".

Divisors: 1 2 4 7 14 28 2971 5942 11884 20797 41594 83188 377827 755654 1511308 2644789 5289578 10579156 1122524017 2245048034 4490096068 7857668119 15715336238 31430672476