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85895785 = 517179157
BaseRepresentation
bin1010001111010…
…10101001101001
312222121221212101
411013222221221
5133442131120
612305013401
72062050013
oct507525151
9188557771
1085895785
1144538858
1224924261
1314a45b11
14b59d1b3
15781a90a
hex51eaa69

85895785 has 4 divisors (see below), whose sum is σ = 103074948. Its totient is φ = 68716624.

The previous prime is 85895773. The next prime is 85895813. The reversal of 85895785 is 58759858.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32137561 + 53758224 = 5669^2 + 7332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-85895785 is a prime.

It is a Duffinian 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, 8589574 + ... + 8589583.

It is an arithmetic number, because the mean of its divisors is an integer number (25768737).

Almost surely, 285895785 is an apocalyptic number.

It is an amenable number.

85895785 is a deficient number, since it is larger than the sum of its proper divisors (17179163).

85895785 is a wasteful number, since it uses less digits than its factorization.

85895785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17179162.

The product of its digits is 4032000, while the sum is 55.

The square root of 85895785 is about 9267.9978959860. The cubic root of 85895785 is about 441.2221274596. Note that the first 3 decimals are identical.

The spelling of 85895785 in words is "eighty-five million, eight hundred ninety-five thousand, seven hundred eighty-five".

Divisors: 1 5 17179157 85895785