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2315803940 = 225139833023
BaseRepresentation
bin1000101000001000…
…0101110100100100
312222101121000210022
42022002011310210
514220321211230
61021443414312
7111250002662
oct21202056444
95871530708
102315803940
11a8923585a
12547684398
132aba196b8
1417d7c3c32
15d84941e5
hex8a085d24

2315803940 has 24 divisors (see below), whose sum is σ = 4898181120. Its totient is φ = 919656288.

The previous prime is 2315803907. The next prime is 2315803951. The reversal of 2315803940 is 493085132.

It is a self number, because there is not a number n which added to its sum of digits gives 2315803940.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413732 + ... + 419291.

It is an arithmetic number, because the mean of its divisors is an integer number (204090880).

Almost surely, 22315803940 is an apocalyptic number.

2315803940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2315803940 is an abundant number, since it is smaller than the sum of its proper divisors (2582377180).

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

2315803940 is a wasteful number, since it uses less digits than its factorization.

2315803940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833171 (or 833169 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2315803940 is about 48122.8006250675. The cubic root of 2315803940 is about 1323.0225997461.

The spelling of 2315803940 in words is "two billion, three hundred fifteen million, eight hundred three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 833023 1666046 3332092 4165115 8330230 16660460 115790197 231580394 463160788 578950985 1157901970 2315803940