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70188896 = 257130893
BaseRepresentation
bin1000010111011…
…11111101100000
311220001222001202
410023233331200
5120432021041
610544220332
71511411231
oct413577540
9156058052
1070188896
113668aa58
121b60a6a8
13117067bb
149471088
156266a9b
hex42eff60

70188896 has 24 divisors (see below), whose sum is σ = 140135184. Its totient is φ = 34599040.

The previous prime is 70188851. The next prime is 70188901. The reversal of 70188896 is 69888107.

It is a super-2 number, since 2×701888962 = 9852962243397632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70188896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13175 + ... + 17718.

It is an arithmetic number, because the mean of its divisors is an integer number (5838966).

Almost surely, 270188896 is an apocalyptic number.

It is an amenable number.

70188896 is a deficient number, since it is larger than the sum of its proper divisors (69946288).

70188896 is a wasteful number, since it uses less digits than its factorization.

70188896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30974 (or 30966 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 70188896 is about 8377.8813550921. The cubic root of 70188896 is about 412.4989085983.

The spelling of 70188896 in words is "seventy million, one hundred eighty-eight thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 16 32 71 142 284 568 1136 2272 30893 61786 123572 247144 494288 988576 2193403 4386806 8773612 17547224 35094448 70188896