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86015065 = 517203013
BaseRepresentation
bin1010010000001…
…11110001011001
312222212000111011
411020013301121
5134004440230
612311333521
72063054533
oct510076131
9188760434
1086015065
114460a434
12249812a1
1314a881b6
14b5d0853
157840e2a
hex5207c59

86015065 has 4 divisors (see below), whose sum is σ = 103218084. Its totient is φ = 68812048.

The previous prime is 86015057. The next prime is 86015077. The reversal of 86015065 is 56051068.

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 14561856 + 71453209 = 3816^2 + 8453^2 .

It is a cyclic number.

It is not a de Polignac number, because 86015065 - 23 = 86015057 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, 8601502 + ... + 8601511.

It is an arithmetic number, because the mean of its divisors is an integer number (25804521).

Almost surely, 286015065 is an apocalyptic number.

It is an amenable number.

86015065 is a deficient number, since it is larger than the sum of its proper divisors (17203019).

86015065 is a wasteful number, since it uses less digits than its factorization.

86015065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17203018.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 86015065 is about 9274.4307102916. The cubic root of 86015065 is about 441.4262687645.

The spelling of 86015065 in words is "eighty-six million, fifteen thousand, sixty-five".

Divisors: 1 5 17203013 86015065