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152912139 = 3137372049
BaseRepresentation
bin10010001110101…
…00000100001011
3101122201202000120
421013110010023
5303121142024
623101234323
73534505662
oct1107240413
9348652016
10152912139
1179351176
12432629a3
13258ab573
1416445dd9
15d657479
hex91d410b

152912139 has 8 divisors (see below), whose sum is σ = 205371600. Its totient is φ = 101197056.

The previous prime is 152912131. The next prime is 152912147. The reversal of 152912139 is 931219251.

It is an interprime number because it is at equal distance from previous prime (152912131) and next prime (152912147).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 152912139 - 23 = 152912131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152912131) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 185614 + ... + 186435.

It is an arithmetic number, because the mean of its divisors is an integer number (25671450).

Almost surely, 2152912139 is an apocalyptic number.

152912139 is a deficient number, since it is larger than the sum of its proper divisors (52459461).

152912139 is a wasteful number, since it uses less digits than its factorization.

152912139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372189.

The product of its digits is 4860, while the sum is 33.

The square root of 152912139 is about 12365.7647964046. The cubic root of 152912139 is about 534.7457248013.

The spelling of 152912139 in words is "one hundred fifty-two million, nine hundred twelve thousand, one hundred thirty-nine".

Divisors: 1 3 137 411 372049 1116147 50970713 152912139