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86646093 = 3171698943
BaseRepresentation
bin1010010101000…
…01110101001101
320001001002002120
411022201311031
5134140133333
612333043153
72101323342
oct512416515
9201032076
1086646093
1144a00546
12250264b9
1314c494a1
14b7167c9
157917db3
hex52a1d4d

86646093 has 8 divisors (see below), whose sum is σ = 122323968. Its totient is φ = 54366144.

The previous prime is 86646089. The next prime is 86646143. The reversal of 86646093 is 39064668.

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

It is not a de Polignac number, because 86646093 - 22 = 86646089 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86646493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849421 + ... + 849522.

It is an arithmetic number, because the mean of its divisors is an integer number (15290496).

Almost surely, 286646093 is an apocalyptic number.

It is an amenable number.

86646093 is a deficient number, since it is larger than the sum of its proper divisors (35677875).

86646093 is a wasteful number, since it uses less digits than its factorization.

86646093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698963.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 86646093 is about 9308.3883137738. The cubic root of 86646093 is about 442.5031108339.

The spelling of 86646093 in words is "eighty-six million, six hundred forty-six thousand, ninety-three".

Divisors: 1 3 17 51 1698943 5096829 28882031 86646093