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139161164 = 22149923209
BaseRepresentation
bin10000100101101…
…10111001001100
3100200212010020012
420102312321030
5241111124124
621450412352
73306564452
oct1022667114
9320763205
10139161164
117160992a
123a7310b8
1322aa55ac
14146a69d2
15c33ce0e
hex84b6e4c

139161164 has 12 divisors (see below), whose sum is σ = 243705000. Its totient is φ = 69531168.

The previous prime is 139161161. The next prime is 139161173. The reversal of 139161164 is 461161931.

It is a self number, because there is not a number n which added to its sum of digits gives 139161164.

It is not an unprimeable number, because it can be changed into a prime (139161161) 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 3 ways as a sum of consecutive naturals, for example, 5609 + ... + 17600.

It is an arithmetic number, because the mean of its divisors is an integer number (20308750).

Almost surely, 2139161164 is an apocalyptic number.

It is an amenable number.

139161164 is a deficient number, since it is larger than the sum of its proper divisors (104543836).

139161164 is a wasteful number, since it uses less digits than its factorization.

139161164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24712 (or 24710 counting only the distinct ones).

The product of its digits is 3888, while the sum is 32.

The square root of 139161164 is about 11796.6590185527. The cubic root of 139161164 is about 518.2102722598.

The spelling of 139161164 in words is "one hundred thirty-nine million, one hundred sixty-one thousand, one hundred sixty-four".

Divisors: 1 2 4 1499 2998 5996 23209 46418 92836 34790291 69580582 139161164