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85287701 = 378632671
BaseRepresentation
bin1010001010101…
…10001100010101
312221111001201202
411011112030111
5133313201301
612244002245
72053635122
oct505261425
9187431652
1085287701
1144162a04
1224690385
13148920c5
14b481749
15774a66b
hex5156315

85287701 has 8 divisors (see below), whose sum is σ = 87727104. Its totient is φ = 82855440.

The previous prime is 85287673. The next prime is 85287757. The reversal of 85287701 is 10778258.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-85287701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85287781) 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, 30596 + ... + 33266.

It is an arithmetic number, because the mean of its divisors is an integer number (10965888).

Almost surely, 285287701 is an apocalyptic number.

It is an amenable number.

85287701 is a deficient number, since it is larger than the sum of its proper divisors (2439403).

85287701 is a wasteful number, since it uses less digits than its factorization.

85287701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571.

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

The square root of 85287701 is about 9235.1340542517. The cubic root of 85287701 is about 440.1784761491.

The spelling of 85287701 in words is "eighty-five million, two hundred eighty-seven thousand, seven hundred one".

Divisors: 1 37 863 2671 31931 98827 2305073 85287701