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2315424631 = 13178109587
BaseRepresentation
bin1000101000000010…
…1001001101110111
312222100212202110211
42022000221031313
514220222042011
61021431330251
7111243533062
oct21200511567
95870782424
102315424631
11a88aa6883
12547520987
132ab915b60
1417d7258d9
15d841bb21
hex8a029377

2315424631 has 4 divisors (see below), whose sum is σ = 2493534232. Its totient is φ = 2137315032.

The previous prime is 2315424619. The next prime is 2315424647. The reversal of 2315424631 is 1364245132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2315424631 is a prime.

It is a super-2 number, since 2×23154246312 = 10722382443682972322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2315424593 and 2315424602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315425631) 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, 89054781 + ... + 89054806.

It is an arithmetic number, because the mean of its divisors is an integer number (623383558).

Almost surely, 22315424631 is an apocalyptic number.

2315424631 is a deficient number, since it is larger than the sum of its proper divisors (178109601).

2315424631 is a wasteful number, since it uses less digits than its factorization.

2315424631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178109600.

The product of its digits is 17280, while the sum is 31.

The square root of 2315424631 is about 48118.8594108381. The cubic root of 2315424631 is about 1322.9503625168.

Adding to 2315424631 its reverse (1364245132), we get a palindrome (3679669763).

The spelling of 2315424631 in words is "two billion, three hundred fifteen million, four hundred twenty-four thousand, six hundred thirty-one".

Divisors: 1 13 178109587 2315424631