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86740157 = 712391451
BaseRepresentation
bin1010010101110…
…00110010111101
320001012212010102
411022320302331
5134201141112
612335050445
72102164520
oct512706275
9201185112
1086740157
1144a65189
1225070a25
1314c8024a
14b73cbb7
157935bc2
hex52b8cbd

86740157 has 4 divisors (see below), whose sum is σ = 99131616. Its totient is φ = 74348700.

The previous prime is 86740127. The next prime is 86740169. The reversal of 86740157 is 75104768.

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 not a de Polignac number, because 86740157 - 214 = 86723773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86740157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86740117) 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, 6195719 + ... + 6195732.

It is an arithmetic number, because the mean of its divisors is an integer number (24782904).

Almost surely, 286740157 is an apocalyptic number.

It is an amenable number.

86740157 is a deficient number, since it is larger than the sum of its proper divisors (12391459).

86740157 is a wasteful number, since it uses less digits than its factorization.

86740157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12391458.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 86740157 is about 9313.4395901836. The cubic root of 86740157 is about 442.6631817534.

The spelling of 86740157 in words is "eighty-six million, seven hundred forty thousand, one hundred fifty-seven".

Divisors: 1 7 12391451 86740157