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152912705 = 51117163543
BaseRepresentation
bin10010001110101…
…00001101000001
3101122201202210112
421013110031001
5303121201310
623101241105
73534510431
oct1107241501
9348652715
10152912705
1179351640
1243263195
13258ab8ba
14164462c1
15d657705
hex91d4341

152912705 has 16 divisors (see below), whose sum is σ = 211953024. Its totient is φ = 104666880.

The previous prime is 152912701. The next prime is 152912713. The reversal of 152912705 is 507219251.

It is a happy number.

It is not a de Polignac number, because 152912705 - 22 = 152912701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152912701) 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 15 ways as a sum of consecutive naturals, for example, 80837 + ... + 82706.

It is an arithmetic number, because the mean of its divisors is an integer number (13247064).

Almost surely, 2152912705 is an apocalyptic number.

It is an amenable number.

152912705 is a deficient number, since it is larger than the sum of its proper divisors (59040319).

152912705 is a wasteful number, since it uses less digits than its factorization.

152912705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163576.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 152912705 is about 12365.7876821495. The cubic root of 152912705 is about 534.7463845826.

The spelling of 152912705 in words is "one hundred fifty-two million, nine hundred twelve thousand, seven hundred five".

Divisors: 1 5 11 17 55 85 187 935 163543 817715 1798973 2780231 8994865 13901155 30582541 152912705