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70638168 = 2332943257
BaseRepresentation
bin1000011010111…
…01101001011000
311220220210100110
410031131221120
5121040410133
611002004320
71515262116
oct415355130
9156823313
1070638168
1136967557
121b7a66a0
1311833143
14954aab6
156304c63
hex435da58

70638168 has 16 divisors (see below), whose sum is σ = 176595480. Its totient is φ = 23546048.

The previous prime is 70638157. The next prime is 70638223. The reversal of 70638168 is 86183607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1471605 + ... + 1471652.

Almost surely, 270638168 is an apocalyptic number.

It is an amenable number.

70638168 is an abundant number, since it is smaller than the sum of its proper divisors (105957312).

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

70638168 is a wasteful number, since it uses less digits than its factorization.

70638168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943266 (or 2943262 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 70638168 is about 8404.6515692205. The cubic root of 70638168 is about 413.3771586090.

The spelling of 70638168 in words is "seventy million, six hundred thirty-eight thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 2943257 5886514 8829771 11773028 17659542 23546056 35319084 70638168