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86182881 = 3103278909
BaseRepresentation
bin1010010001100…
…00101111100001
320000011112200120
411020300233201
5134030323011
612315110453
72064354021
oct510605741
9200145616
1086182881
1144714524
1224a42429
1314b166b5
14b635a81
157875a06
hex5230be1

86182881 has 8 divisors (see below), whose sum is σ = 116026560. Its totient is φ = 56897232.

The previous prime is 86182871. The next prime is 86182897. The reversal of 86182881 is 18828168.

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

It is not a de Polignac number, because 86182881 - 25 = 86182849 is a prime.

It is a super-2 number, since 2×861828812 = 14854977954920322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (86182871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139146 + ... + 139763.

It is an arithmetic number, because the mean of its divisors is an integer number (14503320).

Almost surely, 286182881 is an apocalyptic number.

It is an amenable number.

86182881 is a deficient number, since it is larger than the sum of its proper divisors (29843679).

86182881 is a wasteful number, since it uses less digits than its factorization.

86182881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279015.

The product of its digits is 49152, while the sum is 42.

The square root of 86182881 is about 9283.4735417299. The cubic root of 86182881 is about 441.7131575285.

The spelling of 86182881 in words is "eighty-six million, one hundred eighty-two thousand, eight hundred eighty-one".

Divisors: 1 3 103 309 278909 836727 28727627 86182881