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152856705 = 3579128993
BaseRepresentation
bin10010001110001…
…10100010000001
3101122121220222110
421013012202001
5303112403310
623100125533
73534155241
oct1107064201
9348556873
10152856705
1179313561
12432368a9
132588c271
141642db21
15d645d20
hex91c6881

152856705 has 16 divisors (see below), whose sum is σ = 247668480. Its totient is φ = 80491008.

The previous prime is 152856703. The next prime is 152856713. The reversal of 152856705 is 507658251.

It is not a de Polignac number, because 152856705 - 21 = 152856703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152856703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63312 + ... + 65681.

It is an arithmetic number, because the mean of its divisors is an integer number (15479280).

Almost surely, 2152856705 is an apocalyptic number.

152856705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

152856705 is a deficient number, since it is larger than the sum of its proper divisors (94811775).

152856705 is a wasteful number, since it uses less digits than its factorization.

152856705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129080.

The product of its (nonzero) digits is 84000, while the sum is 39.

The square root of 152856705 is about 12363.5231629176. The cubic root of 152856705 is about 534.6810979781.

The spelling of 152856705 in words is "one hundred fifty-two million, eight hundred fifty-six thousand, seven hundred five".

Divisors: 1 3 5 15 79 237 395 1185 128993 386979 644965 1934895 10190447 30571341 50952235 152856705