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152115725 = 5243711993
BaseRepresentation
bin10010001000100…
…01101000001101
3101121020021112202
421010101220031
5302420200400
623032211245
73524651036
oct1104215015
9347207482
10152115725
1178957883
1242b39b25
132568cc08
14162b9a8d
15d54b4d5
hex9111a0d

152115725 has 24 divisors (see below), whose sum is σ = 195826752. Its totient is φ = 117129600.

The previous prime is 152115707. The next prime is 152115731. The reversal of 152115725 is 527511251.

It is not a de Polignac number, because 152115725 - 212 = 152111629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75329 + ... + 77321.

It is an arithmetic number, because the mean of its divisors is an integer number (8159448).

Almost surely, 2152115725 is an apocalyptic number.

It is an amenable number.

152115725 is a deficient number, since it is larger than the sum of its proper divisors (43711027).

152115725 is a wasteful number, since it uses less digits than its factorization.

152115725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117 (or 2112 counting only the distinct ones).

The product of its digits is 3500, while the sum is 29.

The square root of 152115725 is about 12333.5203814645. The cubic root of 152115725 is about 533.8157343258.

Adding to 152115725 its reverse (527511251), we get a palindrome (679626976).

The spelling of 152115725 in words is "one hundred fifty-two million, one hundred fifteen thousand, seven hundred twenty-five".

Divisors: 1 5 25 43 71 215 355 1075 1775 1993 3053 9965 15265 49825 76325 85699 141503 428495 707515 2142475 3537575 6084629 30423145 152115725