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86872351 = 194572229
BaseRepresentation
bin1010010110110…
…01000100011111
320001110120110111
411023121010133
5134214403401
612341550451
72103255106
oct513310437
9201416414
1086872351
1145045535
1225115427
1314cc8477
14b77503d
15795ee51
hex52d911f

86872351 has 4 divisors (see below), whose sum is σ = 91444600. Its totient is φ = 82300104.

The previous prime is 86872349. The next prime is 86872361. The reversal of 86872351 is 15327868.

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 86872351 - 21 = 86872349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86872301) 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, 2286096 + ... + 2286133.

It is an arithmetic number, because the mean of its divisors is an integer number (22861150).

Almost surely, 286872351 is an apocalyptic number.

86872351 is a deficient number, since it is larger than the sum of its proper divisors (4572249).

86872351 is a wasteful number, since it uses less digits than its factorization.

86872351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572248.

The product of its digits is 80640, while the sum is 40.

The square root of 86872351 is about 9320.5338366426. The cubic root of 86872351 is about 442.8879439109.

The spelling of 86872351 in words is "eighty-six million, eight hundred seventy-two thousand, three hundred fifty-one".

Divisors: 1 19 4572229 86872351