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31676214820 = 2251583810741
BaseRepresentation
bin11101100000000011…
…001010111000100100
310000202120101102211111
4131200003022320210
51004333102333240
622315111114404
72200652245345
oct354003127044
9100676342744
1031676214820
1112485441038
126180372a04
132caa7343a3
141766cdc0cc
15c55d801ea
hex7600cae24

31676214820 has 12 divisors (see below), whose sum is σ = 66520051164. Its totient is φ = 12670485920.

The previous prime is 31676214803. The next prime is 31676214833. The reversal of 31676214820 is 2841267613.

It can be written as a sum of positive squares in 2 ways, for example, as 5049807844 + 26626406976 = 71062^2 + 163176^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791905351 + ... + 791905390.

It is an arithmetic number, because the mean of its divisors is an integer number (5543337597).

Almost surely, 231676214820 is an apocalyptic number.

It is an amenable number.

31676214820 is an abundant number, since it is smaller than the sum of its proper divisors (34843836344).

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

31676214820 is a wasteful number, since it uses less digits than its factorization.

31676214820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583810750 (or 1583810748 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The spelling of 31676214820 in words is "thirty-one billion, six hundred seventy-six million, two hundred fourteen thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 1583810741 3167621482 6335242964 7919053705 15838107410 31676214820