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70645374 = 23223170641
BaseRepresentation
bin1000011010111…
…11011001111110
311220221011020100
410031133121332
5121041122444
611002101530
71515322122
oct415373176
9156834210
1070645374
1136971a08
121b7aa8a6
13118364c7
14954d582
156306e69
hex435f67e

70645374 has 24 divisors (see below), whose sum is σ = 159720912. Its totient is φ = 22524480.

The previous prime is 70645357. The next prime is 70645409. The reversal of 70645374 is 47354607.

70645374 is a `hidden beast` number, since 7 + 0 + 645 + 3 + 7 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84907 + ... + 85734.

It is an arithmetic number, because the mean of its divisors is an integer number (6655038).

Almost surely, 270645374 is an apocalyptic number.

70645374 is an abundant number, since it is smaller than the sum of its proper divisors (89075538).

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

70645374 is a wasteful number, since it uses less digits than its factorization.

70645374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170672 (or 170669 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 70645374 is about 8405.0802494682. The cubic root of 70645374 is about 413.3912147234.

The spelling of 70645374 in words is "seventy million, six hundred forty-five thousand, three hundred seventy-four".

Divisors: 1 2 3 6 9 18 23 46 69 138 207 414 170641 341282 511923 1023846 1535769 3071538 3924743 7849486 11774229 23548458 35322687 70645374