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315200531425 = 5213969847789
BaseRepresentation
bin1001001011000110110…
…10100110101111100001
31010010120212102000211111
410211203122212233201
520131012314001200
6400445013143321
731525651211443
oct4454332465741
91103525360744
10315200531425
1111174853456a
125110802ab41
1323953089ac0
1411381c46493
1582ebdd50ba
hex49636a6be1

315200531425 has 12 divisors (see below), whose sum is σ = 420913940860. Its totient is φ = 232763469120.

The previous prime is 315200531423. The next prime is 315200531537. The reversal of 315200531425 is 524135002513.

It can be written as a sum of positive squares in 6 ways, for example, as 129640323136 + 185560208289 = 360056^2 + 430767^2 .

It is not a de Polignac number, because 315200531425 - 21 = 315200531423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315200531423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 484923570 + ... + 484924219.

Almost surely, 2315200531425 is an apocalyptic number.

It is an amenable number.

315200531425 is a deficient number, since it is larger than the sum of its proper divisors (105713409435).

315200531425 is a wasteful number, since it uses less digits than its factorization.

315200531425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969847812 (or 969847807 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 315200531425 its reverse (524135002513), we get a palindrome (839335533938).

The spelling of 315200531425 in words is "three hundred fifteen billion, two hundred million, five hundred thirty-one thousand, four hundred twenty-five".

Divisors: 1 5 13 25 65 325 969847789 4849238945 12608021257 24246194725 63040106285 315200531425