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315011332525 = 52109115600489
BaseRepresentation
bin1001001010110000010…
…00110111100110101101
31010010002200101201201211
410211120020313212231
520130120400120100
6400414134034421
731521163101241
oct4453010674655
91103080351654
10315011332525
1111166075963a
12510747a8a11
1323922b14ba6
1411364a76421
1582da4b11ba
hex49582379ad

315011332525 has 12 divisors (see below), whose sum is σ = 394197670900. Its totient is φ = 249697054080.

The previous prime is 315011332499. The next prime is 315011332589. The reversal of 315011332525 is 525233110513.

It can be written as a sum of positive squares in 6 ways, for example, as 1238828809 + 313772503716 = 35197^2 + 560154^2 .

It is a de Polignac number, because none of the positive numbers 2k-315011332525 is a prime.

It is a super-2 number, since 2×3150113325252 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57797520 + ... + 57802969.

Almost surely, 2315011332525 is an apocalyptic number.

It is an amenable number.

315011332525 is a deficient number, since it is larger than the sum of its proper divisors (79186338375).

315011332525 is a wasteful number, since it uses less digits than its factorization.

315011332525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115600608 (or 115600603 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

The spelling of 315011332525 in words is "three hundred fifteen billion, eleven million, three hundred thirty-two thousand, five hundred twenty-five".

Divisors: 1 5 25 109 545 2725 115600489 578002445 2890012225 12600453301 63002266505 315011332525