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70397652 = 223133114557
BaseRepresentation
bin1000011001000…
…10111011010100
311220110120102110
410030202323110
5121010211102
610552511020
71513240653
oct414427324
9156416373
1070397652
1136812886
121b6ab470
131177a820
1494c719a
1562a886c
hex4322ed4

70397652 has 48 divisors (see below), whose sum is σ = 182615552. Its totient is φ = 20960640.

The previous prime is 70397633. The next prime is 70397669. The reversal of 70397652 is 25679307.

It is a super-2 number, since 2×703976522 = 9911658814226208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 70397652.

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, 2443 + ... + 12114.

Almost surely, 270397652 is an apocalyptic number.

It is an amenable number.

70397652 is an abundant number, since it is smaller than the sum of its proper divisors (112217900).

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

70397652 is a wasteful number, since it uses less digits than its factorization.

70397652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14608 (or 14606 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 70397652 is about 8390.3308635596. The cubic root of 70397652 is about 412.9074556131.

The spelling of 70397652 in words is "seventy million, three hundred ninety-seven thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 31 39 52 62 78 93 124 156 186 372 403 806 1209 1612 2418 4836 14557 29114 43671 58228 87342 174684 189241 378482 451267 567723 756964 902534 1135446 1353801 1805068 2270892 2707602 5415204 5866471 11732942 17599413 23465884 35198826 70397652