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85708087 = 316174481
BaseRepresentation
bin1010001101111…
…00110100110111
312222021102101121
411012330310313
5133420124322
612301004411
72060335543
oct506746467
9188242347
1085708087
114441a833
1224853707
13149ab55a
14b550a23
1577ceec7
hex51bcd37

85708087 has 8 divisors (see below), whose sum is σ = 88636032. Its totient is φ = 82790400.

The previous prime is 85708039. The next prime is 85708093. The reversal of 85708087 is 78080758.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85708087 - 211 = 85706039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85708037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16887 + ... + 21367.

It is an arithmetic number, because the mean of its divisors is an integer number (11079504).

Almost surely, 285708087 is an apocalyptic number.

85708087 is a deficient number, since it is larger than the sum of its proper divisors (2927945).

85708087 is a wasteful number, since it uses less digits than its factorization.

85708087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129.

The product of its (nonzero) digits is 125440, while the sum is 43.

The square root of 85708087 is about 9257.8662228399. The cubic root of 85708087 is about 440.9005093993.

The spelling of 85708087 in words is "eighty-five million, seven hundred eight thousand, eighty-seven".

Divisors: 1 31 617 4481 19127 138911 2764777 85708087