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315244250525013 = 3105081416841671
BaseRepresentation
bin100011110101101101000010…
…1100100011110110101010101
31112100012001111211202020020220
41013223122011210132311111
5312304430211113300023
63034245113122144553
7123254434256120535
oct10753320544366525
91470161454666226
10315244250525013
11914a0377025627
122b4345457b2159
13106b95364b2074
1457bbc902c54c5
15266a35e18e3e3
hex11eb68591ed55

315244250525013 has 4 divisors (see below), whose sum is σ = 420325667366688. Its totient is φ = 210162833683340.

The previous prime is 315244250524993. The next prime is 315244250525023. The reversal of 315244250525013 is 310525052442513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 315244250525013 - 29 = 315244250524501 is a prime.

It is a super-2 number, since 2×3152442505250132 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315244250525023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52540708420833 + ... + 52540708420838.

It is an arithmetic number, because the mean of its divisors is an integer number (105081416841672).

Almost surely, 2315244250525013 is an apocalyptic number.

It is an amenable number.

315244250525013 is a deficient number, since it is larger than the sum of its proper divisors (105081416841675).

315244250525013 is a wasteful number, since it uses less digits than its factorization.

315244250525013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105081416841674.

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 315244250525013 in words is "three hundred fifteen trillion, two hundred forty-four billion, two hundred fifty million, five hundred twenty-five thousand, thirteen".

Divisors: 1 3 105081416841671 315244250525013