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252383287 = 13109277643
BaseRepresentation
bin11110000101100…
…01000000110111
3122120220101210011
433002301000313
51004102231122
641013241051
76153136222
oct1702610067
9576811704
10252383287
1111a511332
1270633187
1340398430
142573a5b9
1517255377
hexf0b1037

252383287 has 16 divisors (see below), whose sum is σ = 275709280. Its totient is φ = 229640832.

The previous prime is 252383281. The next prime is 252383303. The reversal of 252383287 is 782383252.

It is a cyclic number.

It is not a de Polignac number, because 252383287 - 215 = 252350519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252383281) 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 15 ways as a sum of consecutive naturals, for example, 392188 + ... + 392830.

It is an arithmetic number, because the mean of its divisors is an integer number (17231830).

Almost surely, 2252383287 is an apocalyptic number.

252383287 is a deficient number, since it is larger than the sum of its proper divisors (23325993).

252383287 is a wasteful number, since it uses less digits than its factorization.

252383287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042.

The product of its digits is 161280, while the sum is 40.

The square root of 252383287 is about 15886.5756851500. The cubic root of 252383287 is about 631.9560327996.

The spelling of 252383287 in words is "two hundred fifty-two million, three hundred eighty-three thousand, two hundred eighty-seven".

Divisors: 1 13 109 277 643 1417 3601 8359 30193 70087 178111 392509 911131 2315443 19414099 252383287