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315239320 = 23511716453
BaseRepresentation
bin10010110010100…
…010101110011000
3210222011211001101
4102302202232120
51121200124240
651140401144
710545330034
oct2262425630
9728154041
10315239320
11151a42a70
12896a61b4
1350405356
142dc1d1c4
151ca1e39a
hex12ca2b98

315239320 has 32 divisors (see below), whose sum is σ = 773770320. Its totient is φ = 114632320.

The previous prime is 315239303. The next prime is 315239359. The reversal of 315239320 is 23932513.

It is a congruent number.

It is an unprimeable number.

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, 357787 + ... + 358666.

Almost surely, 2315239320 is an apocalyptic number.

It is an amenable number.

315239320 is an abundant number, since it is smaller than the sum of its proper divisors (458531000).

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

315239320 is a wasteful number, since it uses less digits than its factorization.

315239320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716475 (or 716471 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 315239320 is about 17754.9801464265. The cubic root of 315239320 is about 680.5814807086.

The spelling of 315239320 in words is "three hundred fifteen million, two hundred thirty-nine thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 716453 1432906 2865812 3582265 5731624 7164530 7880983 14329060 15761966 28658120 31523932 39404915 63047864 78809830 157619660 315239320