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2315314940 = 225472463101
BaseRepresentation
bin1000101000000000…
…1110011011111100
312222100200012000012
42022000032123330
514220210034230
61021425122352
7111242565221
oct21200163374
95870605005
102315314940
11a88a31424
125474893b8
132ab8a7c53
1417d6d7948
15d83e9395
hex8a00e6fc

2315314940 has 24 divisors (see below), whose sum is σ = 4965613632. Its totient is φ = 906420800.

The previous prime is 2315314931. The next prime is 2315314943. The reversal of 2315314940 is 494135132.

It is a junction number, because it is equal to n+sod(n) for n = 2315314897 and 2315314906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315314943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1230611 + ... + 1232490.

It is an arithmetic number, because the mean of its divisors is an integer number (206900568).

Almost surely, 22315314940 is an apocalyptic number.

2315314940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2315314940 is an abundant number, since it is smaller than the sum of its proper divisors (2650298692).

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

2315314940 is a wasteful number, since it uses less digits than its factorization.

2315314940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463157 (or 2463155 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 2315314940 is about 48117.7196051517. The cubic root of 2315314940 is about 1322.9294710227.

The spelling of 2315314940 in words is "two billion, three hundred fifteen million, three hundred fourteen thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 47 94 188 235 470 940 2463101 4926202 9852404 12315505 24631010 49262020 115765747 231531494 463062988 578828735 1157657470 2315314940