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2309072680 = 23557726817
BaseRepresentation
bin1000100110100001…
…1010011100101000
312221220221001020101
42021220122130220
514212110311210
61021043235144
7111135536215
oct21150323450
95856831211
102309072680
11a85458532
12545378ab4
132aa5008c5
1417c950b0c
15d7ab4a3a
hex89a1a728

2309072680 has 16 divisors (see below), whose sum is σ = 5195413620. Its totient is φ = 923629056.

The previous prime is 2309072671. The next prime is 2309072683. The reversal of 2309072680 is 862709032.

It can be written as a sum of positive squares in 2 ways, for example, as 2119129156 + 189943524 = 46034^2 + 13782^2 .

It is not an unprimeable number, because it can be changed into a prime (2309072683) 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 3 ways as a sum of consecutive naturals, for example, 28863369 + ... + 28863448.

Almost surely, 22309072680 is an apocalyptic number.

2309072680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2309072680 is an abundant number, since it is smaller than the sum of its proper divisors (2886340940).

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

2309072680 is a wasteful number, since it uses less digits than its factorization.

2309072680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57726828 (or 57726824 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 2309072680 is about 48052.8113641647. The cubic root of 2309072680 is about 1321.7394957889.

The spelling of 2309072680 in words is "two billion, three hundred nine million, seventy-two thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 57726817 115453634 230907268 288634085 461814536 577268170 1154536340 2309072680