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70391813874 = 2319763593633
BaseRepresentation
bin100000110001110101…
…1011101011011110010
320201200201121122110120
41001203223131123302
52123130301020444
652200524511110
75041242355104
oct1014353353362
9221621548416
1070391813874
1127942386698
12117860ab496
13683a680b95
14359aa89574
151c6ec08b19
hex1063add6f2

70391813874 has 16 divisors (see below), whose sum is σ = 140790988512. Its totient is φ = 23462711168.

The previous prime is 70391813831. The next prime is 70391813893. The reversal of 70391813874 is 47831819307.

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, 178239 + ... + 415394.

It is an arithmetic number, because the mean of its divisors is an integer number (8799436782).

Almost surely, 270391813874 is an apocalyptic number.

70391813874 is an abundant number, since it is smaller than the sum of its proper divisors (70399174638).

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

70391813874 is a wasteful number, since it uses less digits than its factorization.

70391813874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613401.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The spelling of 70391813874 in words is "seventy billion, three hundred ninety-one million, eight hundred thirteen thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 19763 39526 59289 118578 593633 1187266 1780899 3561798 11731968979 23463937958 35195906937 70391813874