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152075639 = 198003981
BaseRepresentation
bin10010001000001…
…11110101110111
3101121011020120002
421010013311313
5302412410024
623031301515
73524423132
oct1104076567
9347136502
10152075639
117892a751
1242b1a89b
13256778b1
14162a9219
15d53e6ae
hex9107d77

152075639 has 4 divisors (see below), whose sum is σ = 160079640. Its totient is φ = 144071640.

The previous prime is 152075611. The next prime is 152075647. The reversal of 152075639 is 936570251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936570251 = 1078752993.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-152075639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152075669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4001972 + ... + 4002009.

It is an arithmetic number, because the mean of its divisors is an integer number (40019910).

Almost surely, 2152075639 is an apocalyptic number.

152075639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

152075639 is a deficient number, since it is larger than the sum of its proper divisors (8004001).

152075639 is an equidigital number, since it uses as much as digits as its factorization.

152075639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8004000.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 152075639 is about 12331.8951909267. The cubic root of 152075639 is about 533.7688392892.

The spelling of 152075639 in words is "one hundred fifty-two million, seventy-five thousand, six hundred thirty-nine".

Divisors: 1 19 8003981 152075639