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152754138 = 23240920749
BaseRepresentation
bin10010001101011…
…01011111011010
3101122102201021200
421012231133122
5303101113023
623054015030
73533250225
oct1106553732
9348381250
10152754138
1179253499
12431a7476
1325854684
14164045bc
15d625743
hex91ad7da

152754138 has 24 divisors (see below), whose sum is σ = 331792500. Its totient is φ = 50791104.

The previous prime is 152754137. The next prime is 152754193. The reversal of 152754138 is 831457251.

152754138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 152102889 + 651249 = 12333^2 + 807^2 .

It is a super-2 number, since 2×1527541382 = 46667653352246088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (152754137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3013 + ... + 17736.

Almost surely, 2152754138 is an apocalyptic number.

152754138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

152754138 is an abundant number, since it is smaller than the sum of its proper divisors (179038362).

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

152754138 is a wasteful number, since it uses less digits than its factorization.

152754138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21166 (or 21163 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 152754138 is about 12359.3744987358. The cubic root of 152754138 is about 534.5614807048.

The spelling of 152754138 in words is "one hundred fifty-two million, seven hundred fifty-four thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 18 409 818 1227 2454 3681 7362 20749 41498 62247 124494 186741 373482 8486341 16972682 25459023 50918046 76377069 152754138