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252659307 = 3131642899
BaseRepresentation
bin11110000111101…
…00011001101011
3122121102102102010
433003310121223
51004140044212
641023211003
76155366025
oct1703643153
9577372363
10252659307
1111a68a74a
1270746a63
1340463c64
14257ad015
15172ac03c
hexf0f466b

252659307 has 8 divisors (see below), whose sum is σ = 339451200. Its totient is φ = 167153480.

The previous prime is 252659279. The next prime is 252659333. The reversal of 252659307 is 703956252.

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 252659307 - 218 = 252397163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252659707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321057 + ... + 321842.

It is an arithmetic number, because the mean of its divisors is an integer number (42431400).

Almost surely, 2252659307 is an apocalyptic number.

252659307 is a deficient number, since it is larger than the sum of its proper divisors (86791893).

252659307 is a wasteful number, since it uses less digits than its factorization.

252659307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643033.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 252659307 is about 15895.2605200418. The cubic root of 252659307 is about 632.1863292867.

The spelling of 252659307 in words is "two hundred fifty-two million, six hundred fifty-nine thousand, three hundred seven".

Divisors: 1 3 131 393 642899 1928697 84219769 252659307