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138752160 = 2535289067
BaseRepresentation
bin10000100010100…
…11000010100000
3100200002100011220
420101103002200
5241010032120
621433535040
73303242151
oct1021230240
9320070156
10138752160
117135a608
123a574480
1322991391
14145db928
15c2abb40
hex84530a0

138752160 has 48 divisors (see below), whose sum is σ = 437070816. Its totient is φ = 37000448.

The previous prime is 138752149. The next prime is 138752177. The reversal of 138752160 is 61257831.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144054 + ... + 145013.

It is an arithmetic number, because the mean of its divisors is an integer number (9105642).

Almost surely, 2138752160 is an apocalyptic number.

138752160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138752160 is an abundant number, since it is smaller than the sum of its proper divisors (298318656).

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

138752160 is a wasteful number, since it uses less digits than its factorization.

138752160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289085 (or 289077 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 138752160 is about 11779.3106759267. The cubic root of 138752160 is about 517.7020891504.

The spelling of 138752160 in words is "one hundred thirty-eight million, seven hundred fifty-two thousand, one hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 289067 578134 867201 1156268 1445335 1734402 2312536 2890670 3468804 4336005 4625072 5781340 6937608 8672010 9250144 11562680 13875216 17344020 23125360 27750432 34688040 46250720 69376080 138752160