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2315452520 = 23557886313
BaseRepresentation
bin1000101000000011…
…0000000001101000
312222100221011201202
42022000300001220
514220223440040
61021432103332
7111244010303
oct21200600150
95870834652
102315452520
11a89015827
12547534b48
132ab925764
1417d731b3a
15d8425015
hex8a030068

2315452520 has 16 divisors (see below), whose sum is σ = 5209768260. Its totient is φ = 926180992.

The previous prime is 2315452511. The next prime is 2315452541. The reversal of 2315452520 is 252545132.

It can be written as a sum of positive squares in 2 ways, for example, as 2249225476 + 66227044 = 47426^2 + 8138^2 .

It is a super-2 number, since 2×23154525202 = 10722640744748700800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28943117 + ... + 28943196.

Almost surely, 22315452520 is an apocalyptic number.

2315452520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2315452520 is an abundant number, since it is smaller than the sum of its proper divisors (2894315740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2315452520 is a wasteful number, since it uses less digits than its factorization.

2315452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57886324 (or 57886320 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2315452520 is about 48119.1492027862. The cubic root of 2315452520 is about 1322.9556740860.

Adding to 2315452520 its reverse (252545132), we get a palindrome (2567997652).

The spelling of 2315452520 in words is "two billion, three hundred fifteen million, four hundred fifty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 57886313 115772626 231545252 289431565 463090504 578863130 1157726260 2315452520