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252504312 = 23310521013
BaseRepresentation
bin11110000110011…
…10100011111000
3122121010112210120
433003032203320
51004120114222
641020013240
76154152114
oct1703164370
9577115716
10252504312
1111a594255
1270691220
134040b548
142576c744
151727b15c
hexf0ce8f8

252504312 has 16 divisors (see below), whose sum is σ = 631260840. Its totient is φ = 84168096.

The previous prime is 252504293. The next prime is 252504323. The reversal of 252504312 is 213405252.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 10521013 = 252504312 / (2 + 5 + 2 + 5 + 0 + 4 + 3 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5260483 + ... + 5260530.

Almost surely, 2252504312 is an apocalyptic number.

It is an amenable number.

252504312 is an abundant number, since it is smaller than the sum of its proper divisors (378756528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252504312 is a wasteful number, since it uses less digits than its factorization.

252504312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10521022 (or 10521018 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 252504312 is about 15890.3842621882. The cubic root of 252504312 is about 632.0570303180.

Adding to 252504312 its reverse (213405252), we get a palindrome (465909564).

The spelling of 252504312 in words is "two hundred fifty-two million, five hundred four thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 10521013 21042026 31563039 42084052 63126078 84168104 126252156 252504312