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85486957 = 288729611
BaseRepresentation
bin1010001100001…
…10110101101101
312221212012001121
411012012311231
5133341040312
612252140541
72055425053
oct506066555
9187765047
1085486957
1144289686
1224767751
13149319ca
14b4d41d3
157789707
hex5186d6d

85486957 has 4 divisors (see below), whose sum is σ = 85519456. Its totient is φ = 85454460.

The previous prime is 85486939. The next prime is 85486963. The reversal of 85486957 is 75968458.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-85486957 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 (85480957) 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, 11919 + ... + 17692.

It is an arithmetic number, because the mean of its divisors is an integer number (21379864).

Almost surely, 285486957 is an apocalyptic number.

It is an amenable number.

85486957 is a deficient number, since it is larger than the sum of its proper divisors (32499).

85486957 is a wasteful number, since it uses less digits than its factorization.

85486957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32498.

The product of its digits is 2419200, while the sum is 52.

The square root of 85486957 is about 9245.9156928884. The cubic root of 85486957 is about 440.5210030171.

The spelling of 85486957 in words is "eighty-five million, four hundred eighty-six thousand, nine hundred fifty-seven".

Divisors: 1 2887 29611 85486957