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2315230457 = 2979835533
BaseRepresentation
bin1000100111111111…
…1001110011111001
312222100111220010012
42021333321303321
514220144333312
61021423231305
7111242064011
oct21177716371
95870456105
102315230457
11a88983a01
12547448535
132ab878667
1417d6b4c41
15d83ce322
hex89ff9cf9

2315230457 has 4 divisors (see below), whose sum is σ = 2395066020. Its totient is φ = 2235394896.

The previous prime is 2315230451. The next prime is 2315230499. The reversal of 2315230457 is 7540325132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1572994921 + 742235536 = 39661^2 + 27244^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315230457 - 28 = 2315230201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2315230451) 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, 39917738 + ... + 39917795.

It is an arithmetic number, because the mean of its divisors is an integer number (598766505).

Almost surely, 22315230457 is an apocalyptic number.

It is an amenable number.

2315230457 is a deficient number, since it is larger than the sum of its proper divisors (79835563).

2315230457 is an equidigital number, since it uses as much as digits as its factorization.

2315230457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79835562.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 2315230457 is about 48116.8417188826. The cubic root of 2315230457 is about 1322.9133801362.

Adding to 2315230457 its reverse (7540325132), we get a palindrome (9855555589).

The spelling of 2315230457 in words is "two billion, three hundred fifteen million, two hundred thirty thousand, four hundred fifty-seven".

Divisors: 1 29 79835533 2315230457