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70166672 = 241131972
BaseRepresentation
bin1000010111010…
…10100010010000
311220000211120122
410023222202100
5120430313142
610543525412
71511256362
oct413524220
9156024518
1070166672
1136675294
121b5b9868
13116c9654
149466d32
1562601d2
hex42ea890

70166672 has 30 divisors (see below), whose sum is σ = 137850738. Its totient is φ = 34596352.

The previous prime is 70166617. The next prime is 70166683. The reversal of 70166672 is 27666107.

It can be written as a sum of positive squares in 3 ways, for example, as 29767936 + 40398736 = 5456^2 + 6356^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 356078 + ... + 356274.

Almost surely, 270166672 is an apocalyptic number.

It is an amenable number.

70166672 is a deficient number, since it is larger than the sum of its proper divisors (67684066).

70166672 is a wasteful number, since it uses less digits than its factorization.

70166672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 70166672 is about 8376.5549004349. The cubic root of 70166672 is about 412.4553673166.

The spelling of 70166672 in words is "seventy million, one hundred sixty-six thousand, six hundred seventy-two".

Divisors: 1 2 4 8 16 113 197 226 394 452 788 904 1576 1808 3152 22261 38809 44522 77618 89044 155236 178088 310472 356176 620944 4385417 8770834 17541668 35083336 70166672