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2315995740 = 2234531107431
BaseRepresentation
bin1000101000001011…
…0100101001011100
312222101221202220000
42022002310221130
514220343330430
61021451454300
7111251432112
oct21202645134
95871852800
102315995740
11a89356973
12547757390
132aba85aa6
1417d833ab2
15d84d0e60
hex8a0b4a5c

2315995740 has 240 divisors, whose sum is σ = 7587385344. Its totient is φ = 590716800.

The previous prime is 2315995727. The next prime is 2315995777. The reversal of 2315995740 is 475995132.

It is a happy number.

2315995740 is a `hidden beast` number, since 2 + 3 + 1 + 599 + 57 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 5373325 + ... + 5373755.

Almost surely, 22315995740 is an apocalyptic number.

2315995740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2315995740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3793692672).

2315995740 is an abundant number, since it is smaller than the sum of its proper divisors (5271389604).

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

2315995740 is a wasteful number, since it uses less digits than its factorization.

2315995740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 2315995740 is about 48124.7934021539. The cubic root of 2315995740 is about 1323.0591239562.

The spelling of 2315995740 in words is "two billion, three hundred fifteen million, nine hundred ninety-five thousand, seven hundred forty".