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31843076412 = 22372331626971
BaseRepresentation
bin11101101001111111…
…101100100100111100
310001012012100212220110
4131221333230210330
51010203311421122
622343431350020
72205046453320
oct355177544474
9101165325813
1031843076412
111256064a684
126208222310
133006188064
141781135980
15c6584090c
hex769fec93c

31843076412 has 48 divisors (see below), whose sum is σ = 85279364352. Its totient is φ = 9058968960.

The previous prime is 31843076407. The next prime is 31843076491. The reversal of 31843076412 is 21467034813.

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, 793914 + ... + 833057.

It is an arithmetic number, because the mean of its divisors is an integer number (1776653424).

Almost surely, 231843076412 is an apocalyptic number.

It is an amenable number.

31843076412 is an abundant number, since it is smaller than the sum of its proper divisors (53436287940).

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

31843076412 is a wasteful number, since it uses less digits than its factorization.

31843076412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627218 (or 1627216 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 31843076412 in words is "thirty-one billion, eight hundred forty-three million, seventy-six thousand, four hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 233 466 699 932 1398 1631 2796 3262 4893 6524 9786 19572 1626971 3253942 4880913 6507884 9761826 11388797 19523652 22777594 34166391 45555188 68332782 136665564 379084243 758168486 1137252729 1516336972 2274505458 2653589701 4549010916 5307179402 7960769103 10614358804 15921538206 31843076412