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152936991 = 342697019
BaseRepresentation
bin10010001110110…
…10001000011111
3101122210000010000
421013122020133
5303122440431
623101545343
73534641304
oct1107321037
9348700100
10152936991
1179368909
1243275253
13258b997c
14164510ab
15d65e9e6
hex91da21f

152936991 has 20 divisors (see below), whose sum is σ = 229343400. Its totient is φ = 101564496.

The previous prime is 152936983. The next prime is 152937007. The reversal of 152936991 is 199639251.

It is a happy number.

152936991 is a `hidden beast` number, since 1 + 529 + 36 + 9 + 91 = 666.

152936991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 152936991 - 23 = 152936983 is a prime.

It is a super-2 number, since 2×1529369912 = 46779446432268162, which contains 22 as substring.

It is a house number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152936921) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18280 + ... + 25298.

It is an arithmetic number, because the mean of its divisors is an integer number (11467170).

Almost surely, 2152936991 is an apocalyptic number.

152936991 is a deficient number, since it is larger than the sum of its proper divisors (76406409).

152936991 is an equidigital number, since it uses as much as digits as its factorization.

152936991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7300 (or 7291 counting only the distinct ones).

The product of its digits is 131220, while the sum is 45.

The square root of 152936991 is about 12366.7696267053. The cubic root of 152936991 is about 534.7746930287.

The spelling of 152936991 in words is "one hundred fifty-two million, nine hundred thirty-six thousand, nine hundred ninety-one".