Base | Representation |
---|---|
bin | 1001001011001100111… |
… | …11010010000000011101 |
3 | 1010010201110102102100011 |
4 | 10211212133102000131 |
5 | 20131114013320421 |
6 | 400454054203221 |
7 | 31530145353613 |
oct | 4454637220035 |
9 | 1103643372304 |
10 | 315252088861 |
11 | 111774649416 |
12 | 51121353511 |
13 | 2396096c068 |
14 | 11388a276b3 |
15 | 83016bb4e1 |
hex | 49667d201d |
315252088861 has 4 divisors (see below), whose sum is σ = 322583532832. Its totient is φ = 307920644892.
The previous prime is 315252088847. The next prime is 315252088871. The reversal of 315252088861 is 168880252513.
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 315252088861 - 27 = 315252088733 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (315252088871) 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, 3665721921 + ... + 3665722006.
It is an arithmetic number, because the mean of its divisors is an integer number (80645883208).
Almost surely, 2315252088861 is an apocalyptic number.
It is an amenable number.
315252088861 is a deficient number, since it is larger than the sum of its proper divisors (7331443971).
315252088861 is an equidigital number, since it uses as much as digits as its factorization.
315252088861 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7331443970.
The product of its (nonzero) digits is 921600, while the sum is 49.
The spelling of 315252088861 in words is "three hundred fifteen billion, two hundred fifty-two million, eighty-eight thousand, eight hundred sixty-one".
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