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86965447 = 319728921
BaseRepresentation
bin1010010111011…
…11110011000111
320001122022011111
411023233303013
5134230343242
612343545451
72104123402
oct513576307
9201568144
1086965447
11450a9478
122515b287
131502b95a
14b79ad39
15797c817
hex52efcc7

86965447 has 8 divisors (see below), whose sum is σ = 90699392. Its totient is φ = 83289600.

The previous prime is 86965423. The next prime is 86965457. The reversal of 86965447 is 74456968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-86965447 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 86965447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86965457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11454 + ... + 17467.

It is an arithmetic number, because the mean of its divisors is an integer number (11337424).

Almost surely, 286965447 is an apocalyptic number.

86965447 is a deficient number, since it is larger than the sum of its proper divisors (3733945).

86965447 is a wasteful number, since it uses less digits than its factorization.

86965447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29049.

The product of its digits is 1451520, while the sum is 49.

The square root of 86965447 is about 9325.5266339226. The cubic root of 86965447 is about 443.0460931034.

The spelling of 86965447 in words is "eighty-six million, nine hundred sixty-five thousand, four hundred forty-seven".

Divisors: 1 31 97 3007 28921 896551 2805337 86965447