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86857701 = 378874663
BaseRepresentation
bin1010010110101…
…01011111100101
320001102211100220
411023111133211
5134213421301
612341354553
72103164310
oct513253745
9201384326
1086857701
1145035527
1225108a59
1314cc18b8
14b76d977
15795a936
hex52d57e5

86857701 has 16 divisors (see below), whose sum is σ = 132532224. Its totient is φ = 49566384.

The previous prime is 86857699. The next prime is 86857711. The reversal of 86857701 is 10775868.

It is not a de Polignac number, because 86857701 - 21 = 86857699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86857711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16296 + ... + 20958.

It is an arithmetic number, because the mean of its divisors is an integer number (8283264).

Almost surely, 286857701 is an apocalyptic number.

It is an amenable number.

86857701 is a deficient number, since it is larger than the sum of its proper divisors (45674523).

86857701 is a wasteful number, since it uses less digits than its factorization.

86857701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560.

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 86857701 is about 9319.7479043159. The cubic root of 86857701 is about 442.8630465642.

The spelling of 86857701 in words is "eighty-six million, eight hundred fifty-seven thousand, seven hundred one".

Divisors: 1 3 7 21 887 2661 4663 6209 13989 18627 32641 97923 4136081 12408243 28952567 86857701