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86025561 = 330899283
BaseRepresentation
bin1010010000010…
…10010101011001
312222212112212220
411020022111121
5134010304221
612311454253
72063130246
oct510122531
9188775786
1086025561
1144617306
1224987389
1314a8cbcb
14b5d45cd
1578440c6
hex520a559

86025561 has 8 divisors (see below), whose sum is σ = 114750240. Its totient is φ = 57325632.

The previous prime is 86025553. The next prime is 86025587. The reversal of 86025561 is 16552068.

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

It is not a de Polignac number, because 86025561 - 23 = 86025553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86025061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4626 + ... + 13908.

It is an arithmetic number, because the mean of its divisors is an integer number (14343780).

Almost surely, 286025561 is an apocalyptic number.

It is an amenable number.

86025561 is a deficient number, since it is larger than the sum of its proper divisors (28724679).

86025561 is a wasteful number, since it uses less digits than its factorization.

86025561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12375.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 86025561 is about 9274.9965498646. The cubic root of 86025561 is about 441.4442230677. Note that the first 3 decimals are identical.

The spelling of 86025561 in words is "eighty-six million, twenty-five thousand, five hundred sixty-one".

Divisors: 1 3 3089 9267 9283 27849 28675187 86025561