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252507955 = 577214513
BaseRepresentation
bin11110000110011…
…11011100110011
3122121010201210111
433003033130303
51004120223310
641020042151
76154165540
oct1703173463
9577121714
10252507955
1111a596a67
1270693357
13404100bb
142576dbc7
151727c28a
hexf0cf733

252507955 has 8 divisors (see below), whose sum is σ = 346296672. Its totient is φ = 173148288.

The previous prime is 252507907. The next prime is 252508001. The reversal of 252507955 is 559705252.

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 252507955 - 215 = 252475187 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3607222 + ... + 3607291.

It is an arithmetic number, because the mean of its divisors is an integer number (43287084).

Almost surely, 2252507955 is an apocalyptic number.

252507955 is a deficient number, since it is larger than the sum of its proper divisors (93788717).

252507955 is an equidigital number, since it uses as much as digits as its factorization.

252507955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214525.

The product of its (nonzero) digits is 157500, while the sum is 40.

The square root of 252507955 is about 15890.4988908467. The cubic root of 252507955 is about 632.0600699660.

The spelling of 252507955 in words is "two hundred fifty-two million, five hundred seven thousand, nine hundred fifty-five".

Divisors: 1 5 7 35 7214513 36072565 50501591 252507955