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152091 = 3343131
BaseRepresentation
bin100101001000011011
321201122000
4211020123
514331331
63132043
71202262
oct451033
9251560
10152091
11a42a5
1274023
13542c4
143d5d9
15300e6
hex2521b

152091 has 16 divisors (see below), whose sum is σ = 232320. Its totient is φ = 98280.

The previous prime is 152083. The next prime is 152093. The reversal of 152091 is 190251.

It is not a de Polignac number, because 152091 - 23 = 152083 is a prime.

152091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (152093) 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, 1096 + ... + 1226.

It is an arithmetic number, because the mean of its divisors is an integer number (14520).

2152091 is an apocalyptic number.

152091 is a deficient number, since it is larger than the sum of its proper divisors (80229).

152091 is a wasteful number, since it uses less digits than its factorization.

152091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 152091 is about 389.9884613678. The cubic root of 152091 is about 53.3786810493.

The spelling of 152091 in words is "one hundred fifty-two thousand, ninety-one".

Divisors: 1 3 9 27 43 129 131 387 393 1161 1179 3537 5633 16899 50697 152091