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139889160 = 23335129527
BaseRepresentation
bin10000101011010…
…00101000001000
3100202020002212000
420111220220020
5241302423120
621514151000
73316016055
oct1025505010
9322202760
10139889160
1171a66884
123aa22460
1322c9ba68
141481602c
15c433990
hex8568a08

139889160 has 64 divisors (see below), whose sum is σ = 466300800. Its totient is φ = 37303488.

The previous prime is 139889159. The next prime is 139889179. The reversal of 139889160 is 61988931.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63684 + ... + 65843.

It is an arithmetic number, because the mean of its divisors is an integer number (7285950).

Almost surely, 2139889160 is an apocalyptic number.

139889160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139889160 is an abundant number, since it is smaller than the sum of its proper divisors (326411640).

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

139889160 is a wasteful number, since it uses less digits than its factorization.

139889160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129547 (or 129537 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 139889160 is about 11827.4747938856. The cubic root of 139889160 is about 519.1123416137.

The spelling of 139889160 in words is "one hundred thirty-nine million, eight hundred eighty-nine thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 129527 259054 388581 518108 647635 777162 1036216 1165743 1295270 1554324 1942905 2331486 2590540 3108648 3497229 3885810 4662972 5181080 5828715 6994458 7771620 9325944 11657430 13988916 15543240 17486145 23314860 27977832 34972290 46629720 69944580 139889160