Search a number
-
+
5315306681 = 51263103687
BaseRepresentation
bin1001111001101000…
…10010010010111001
3111201102200120000102
410330310102102321
541341204303211
62235233245145
7245501234636
oct47464222271
914642616012
105315306681
112288396643
1210441037b5
136692887a9
14385cdb18d
1521198aa3b
hex13cd124b9

5315306681 has 4 divisors (see below), whose sum is σ = 5315461632. Its totient is φ = 5315151732.

The previous prime is 5315306653. The next prime is 5315306809. The reversal of 5315306681 is 1866035135.

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 5315306681 - 26 = 5315306617 is a prime.

It is a super-2 number, since 2×53153066812 = 56504970226166471522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5315306611) 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, 581 + ... + 103106.

It is an arithmetic number, because the mean of its divisors is an integer number (1328865408).

Almost surely, 25315306681 is an apocalyptic number.

It is an amenable number.

5315306681 is a deficient number, since it is larger than the sum of its proper divisors (154951).

5315306681 is a wasteful number, since it uses less digits than its factorization.

5315306681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154950.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 5315306681 is about 72906.1498160478. The cubic root of 5315306681 is about 1745.1902410795.

The spelling of 5315306681 in words is "five billion, three hundred fifteen million, three hundred six thousand, six hundred eighty-one".

Divisors: 1 51263 103687 5315306681