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152665249 = 1161227519
BaseRepresentation
bin10010001100101…
…11110010100001
3101122021012100111
421012113302201
5303040241444
623052051321
73532430122
oct1106276241
9348235314
10152665249
11791a2730
1243163b41
1325823089
14163c0049
15d609234
hex9197ca1

152665249 has 8 divisors (see below), whose sum is σ = 169274880. Its totient is φ = 136510800.

The previous prime is 152665231. The next prime is 152665319. The reversal of 152665249 is 942566251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 152665249 - 25 = 152665217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152665649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113089 + ... + 114430.

It is an arithmetic number, because the mean of its divisors is an integer number (21159360).

Almost surely, 2152665249 is an apocalyptic number.

It is an amenable number.

152665249 is a deficient number, since it is larger than the sum of its proper divisors (16609631).

152665249 is a wasteful number, since it uses less digits than its factorization.

152665249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227591.

The product of its digits is 129600, while the sum is 40.

The square root of 152665249 is about 12355.7779601286. Note that the first 3 decimals coincide. The cubic root of 152665249 is about 534.4577718825.

The spelling of 152665249 in words is "one hundred fifty-two million, six hundred sixty-five thousand, two hundred forty-nine".

Divisors: 1 11 61 671 227519 2502709 13878659 152665249