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70842931839 = 32151193270097
BaseRepresentation
bin100000111111010010…
…0010101101001111111
320202212011110210222100
41001332210111221333
52130041242304324
652313401520143
75055360661611
oct1017644255177
9222764423870
1070842931839
1128053a96259
12118911a3053
1368acc7c6a4
143600958db1
151c996184c9
hex107e915a7f

70842931839 has 24 divisors (see below), whose sum is σ = 103540447712. Its totient is φ = 46672588800.

The previous prime is 70842931829. The next prime is 70842931843. The reversal of 70842931839 is 93813924807.

It is not a de Polignac number, because 70842931839 - 27 = 70842931711 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 (70842931829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 127239 + ... + 397335.

Almost surely, 270842931839 is an apocalyptic number.

70842931839 is a deficient number, since it is larger than the sum of its proper divisors (32697515873).

70842931839 is a wasteful number, since it uses less digits than its factorization.

70842931839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270447 (or 270444 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 70842931839 in words is "seventy billion, eight hundred forty-two million, nine hundred thirty-one thousand, eight hundred thirty-nine".

Divisors: 1 3 9 151 193 453 579 1359 1737 29143 87429 262287 270097 810291 2430873 40784647 52128721 122353941 156386163 367061823 469158489 7871436871 23614310613 70842931839