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315938125 = 54505501
BaseRepresentation
bin10010110101001…
…101010101001101
3211000111022122001
4102311031111031
51121340010000
651203352301
710554300256
oct2265152515
9730438561
10315938125
1115237aa98
1289982691
13505bb449
142dd61b2d
151cb0b46a
hex12d4d54d

315938125 has 10 divisors (see below), whose sum is σ = 394797062. Its totient is φ = 252750000.

The previous prime is 315938113. The next prime is 315938197. The reversal of 315938125 is 521839513.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 64208169 + 251729956 = 8013^2 + 15866^2 .

It is not a de Polignac number, because 315938125 - 215 = 315905357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 252126 + ... + 253375.

Almost surely, 2315938125 is an apocalyptic number.

It is an amenable number.

315938125 is a deficient number, since it is larger than the sum of its proper divisors (78858937).

315938125 is an frugal number, since it uses more digits than its factorization.

315938125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505521 (or 505506 counting only the distinct ones).

The product of its digits is 32400, while the sum is 37.

The square root of 315938125 is about 17774.6483790819. The cubic root of 315938125 is about 681.0840013021.

The spelling of 315938125 in words is "three hundred fifteen million, nine hundred thirty-eight thousand, one hundred twenty-five".

Divisors: 1 5 25 125 625 505501 2527505 12637525 63187625 315938125