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2315938225 = 52372503717
BaseRepresentation
bin1000101000001010…
…0110100110110001
312222101211211222211
42022002212212301
514220340010400
61021450332121
7111251102326
oct21202464661
95871754884
102315938225
11a89317737
1254772a041
132aba65863
1417d81ab4d
15d84bddba
hex8a0a69b1

2315938225 has 12 divisors (see below), whose sum is σ = 2949379804. Its totient is φ = 1802675520.

The previous prime is 2315938201. The next prime is 2315938249. The reversal of 2315938225 is 5228395132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2315938201) and next prime (2315938249).

It can be written as a sum of positive squares in 6 ways, for example, as 31002624 + 2284935601 = 5568^2 + 47801^2 .

It is not a de Polignac number, because 2315938225 - 219 = 2315413937 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1250934 + ... + 1252783.

Almost surely, 22315938225 is an apocalyptic number.

2315938225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2315938225 is a deficient number, since it is larger than the sum of its proper divisors (633441579).

2315938225 is a wasteful number, since it uses less digits than its factorization.

2315938225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503764 (or 2503759 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 2315938225 is about 48124.1958374371. The cubic root of 2315938225 is about 1323.0481716656.

The spelling of 2315938225 in words is "two billion, three hundred fifteen million, nine hundred thirty-eight thousand, two hundred twenty-five".

Divisors: 1 5 25 37 185 925 2503717 12518585 62592925 92637529 463187645 2315938225