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74672164 = 2272666863
BaseRepresentation
bin1000111001101…
…10100000100100
312012111201221201
410130312200210
5123104002124
611224252244
71564463050
oct434664044
9165451851
1074672164
1139172336
1221011084
1312616318
149cbac60
156850144
hex4736824

74672164 has 12 divisors (see below), whose sum is σ = 149344384. Its totient is φ = 32002344.

The previous prime is 74672141. The next prime is 74672201. The reversal of 74672164 is 46127647.

74672164 is an admirable number.

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, 1333404 + ... + 1333459.

Almost surely, 274672164 is an apocalyptic number.

It is an amenable number.

74672164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74672164 is a wasteful number, since it uses less digits than its factorization.

74672164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666874 (or 2666872 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 74672164 is about 8641.3056883783. The cubic root of 74672164 is about 421.1009738563.

The spelling of 74672164 in words is "seventy-four million, six hundred seventy-two thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 2666863 5333726 10667452 18668041 37336082 74672164