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85712708 = 22171260481
BaseRepresentation
bin1010001101111…
…01111101000100
312222021122201202
411012331331010
5133420301313
612301042032
72060355164
oct506757504
9188248652
1085712708
1144423254
1224856318
13149b06a3
14b5525a4
1577d1558
hex51bdf44

85712708 has 12 divisors (see below), whose sum is σ = 158820732. Its totient is φ = 40335360.

The previous prime is 85712701. The next prime is 85712723. The reversal of 85712708 is 80721758.

It can be written as a sum of positive squares in 2 ways, for example, as 58859584 + 26853124 = 7672^2 + 5182^2 .

It is not an unprimeable number, because it can be changed into a prime (85712701) 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, 630173 + ... + 630308.

It is an arithmetic number, because the mean of its divisors is an integer number (13235061).

Almost surely, 285712708 is an apocalyptic number.

It is an amenable number.

85712708 is a deficient number, since it is larger than the sum of its proper divisors (73108024).

85712708 is a wasteful number, since it uses less digits than its factorization.

85712708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260502 (or 1260500 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 38.

The square root of 85712708 is about 9258.1157910236. The cubic root of 85712708 is about 440.9084330570.

The spelling of 85712708 in words is "eighty-five million, seven hundred twelve thousand, seven hundred eight".

Divisors: 1 2 4 17 34 68 1260481 2520962 5041924 21428177 42856354 85712708