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70646684 = 22161910909
BaseRepresentation
bin1000011010111…
…11101110011100
311220221020000212
410031133232130
5121041143214
611002111552
71515326003
oct415375634
9156836025
1070646684
1136972999
121b7ab5b8
1311836c94
14954dc3a
15630753e
hex435fb9c

70646684 has 12 divisors (see below), whose sum is σ = 123719400. Its totient is φ = 35298288.

The previous prime is 70646677. The next prime is 70646689. The reversal of 70646684 is 48664607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70646689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1022 + ... + 11930.

It is an arithmetic number, because the mean of its divisors is an integer number (10309950).

Almost surely, 270646684 is an apocalyptic number.

It is an amenable number.

70646684 is a deficient number, since it is larger than the sum of its proper divisors (53072716).

70646684 is a wasteful number, since it uses less digits than its factorization.

70646684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12532 (or 12530 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 70646684 is about 8405.1581781665. The cubic root of 70646684 is about 413.3937699232.

The spelling of 70646684 in words is "seventy million, six hundred forty-six thousand, six hundred eighty-four".

Divisors: 1 2 4 1619 3238 6476 10909 21818 43636 17661671 35323342 70646684