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86234971 = 108779333
BaseRepresentation
bin1010010001111…
…01011101011011
320000021012010211
411020331131123
5134034004341
612320151551
72064661624
oct510753533
9200235124
1086234971
114474a679
1224a685b7
1314b34314
14b64aa4b
157886181
hex523d75b

86234971 has 4 divisors (see below), whose sum is σ = 86315392. Its totient is φ = 86154552.

The previous prime is 86234969. The next prime is 86234983. The reversal of 86234971 is 17943268.

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

It is a cyclic number.

It is not a de Polignac number, because 86234971 - 21 = 86234969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86234171) 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, 38580 + ... + 40753.

It is an arithmetic number, because the mean of its divisors is an integer number (21578848).

Almost surely, 286234971 is an apocalyptic number.

86234971 is a deficient number, since it is larger than the sum of its proper divisors (80421).

86234971 is a wasteful number, since it uses less digits than its factorization.

86234971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80420.

The product of its digits is 72576, while the sum is 40.

The square root of 86234971 is about 9286.2786410919. The cubic root of 86234971 is about 441.8021319050.

The spelling of 86234971 in words is "eighty-six million, two hundred thirty-four thousand, nine hundred seventy-one".

Divisors: 1 1087 79333 86234971