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2312513557 = 13717839467
BaseRepresentation
bin1000100111010110…
…0010100000010101
312222011101212020021
42021311202200111
514214000413212
61021245105141
7111210020014
oct21165424025
95864355207
102312513557
11a87398732
125465581b1
132ab136b23
1417d1a8a7b
15d8044307
hex89d62815

2312513557 has 8 divisors (see below), whose sum is σ = 2330945856. Its totient is φ = 2294104032.

The previous prime is 2312513551. The next prime is 2312513561. The reversal of 2312513557 is 7553152132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2312513557 - 23 = 2312513549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312513551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 239538 + ... + 249004.

It is an arithmetic number, because the mean of its divisors is an integer number (291368232).

Almost surely, 22312513557 is an apocalyptic number.

It is an amenable number.

2312513557 is a deficient number, since it is larger than the sum of its proper divisors (18432299).

2312513557 is a wasteful number, since it uses less digits than its factorization.

2312513557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11387.

The product of its digits is 31500, while the sum is 34.

The square root of 2312513557 is about 48088.6011129457. The cubic root of 2312513557 is about 1322.3957023391.

Adding to 2312513557 its reverse (7553152132), we get a palindrome (9865665689).

The spelling of 2312513557 in words is "two billion, three hundred twelve million, five hundred thirteen thousand, five hundred fifty-seven".

Divisors: 1 137 1783 9467 244271 1296979 16879661 2312513557