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85959913 = 137193131
BaseRepresentation
bin1010001111110…
…10010011101001
312222202012211111
411013322103221
5134001204123
612310230321
72062434664
oct507722351
9188665744
1085959913
1144581a56
12249553a1
1314a69070
14b5b86db
15782e90d
hex51fa4e9

85959913 has 8 divisors (see below), whose sum is σ = 93877056. Its totient is φ = 78229200.

The previous prime is 85959893. The next prime is 85959949. The reversal of 85959913 is 31995958.

It is a happy number.

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 85959913 - 213 = 85951721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85959953) 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, 45643 + ... + 47488.

It is an arithmetic number, because the mean of its divisors is an integer number (11734632).

Almost surely, 285959913 is an apocalyptic number.

It is an amenable number.

85959913 is a deficient number, since it is larger than the sum of its proper divisors (7917143).

85959913 is a wasteful number, since it uses less digits than its factorization.

85959913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93215.

The product of its digits is 437400, while the sum is 49.

The square root of 85959913 is about 9271.4568973813. The cubic root of 85959913 is about 441.3319025555.

The spelling of 85959913 in words is "eighty-five million, nine hundred fifty-nine thousand, nine hundred thirteen".

Divisors: 1 13 71 923 93131 1210703 6612301 85959913