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166008868 = 2258817057
BaseRepresentation
bin10011110010100…
…01100000100100
3102120101010100121
421321101200210
5314444240433
624250051324
74054023604
oct1171214044
9376333317
10166008868
1185786a13
1247719b44
13285157cc
1418094c04
15e892c2d
hex9e51824

166008868 has 12 divisors (see below), whose sum is σ = 290606092. Its totient is φ = 82978560.

The previous prime is 166008827. The next prime is 166008889. The reversal of 166008868 is 868800661.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 157954624 + 8054244 = 12568^2 + 2838^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19996 + ... + 27052.

Almost surely, 2166008868 is an apocalyptic number.

It is an amenable number.

166008868 is a deficient number, since it is larger than the sum of its proper divisors (124597224).

166008868 is a wasteful number, since it uses less digits than its factorization.

166008868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12942 (or 12940 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 43.

The square root of 166008868 is about 12884.4428672721. The cubic root of 166008868 is about 549.5962524472.

The spelling of 166008868 in words is "one hundred sixty-six million, eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 5881 7057 11762 14114 23524 28228 41502217 83004434 166008868