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2640105708 = 2231911579411
BaseRepresentation
bin1001110101011100…
…1101000011101100
320210222211021011220
42131113031003230
520401331340313
61113550343340
7122265346122
oct23527150354
96728737156
102640105708
1111352a8549
126181bab50
13330c75936
141b08c1912
15106ba3823
hex9d5cd0ec

2640105708 has 24 divisors (see below), whose sum is σ = 6484470720. Its totient is φ = 833717520.

The previous prime is 2640105691. The next prime is 2640105719. The reversal of 2640105708 is 8075010462.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5789478 + ... + 5789933.

It is an arithmetic number, because the mean of its divisors is an integer number (270186280).

Almost surely, 22640105708 is an apocalyptic number.

It is an amenable number.

2640105708 is an abundant number, since it is smaller than the sum of its proper divisors (3844365012).

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

2640105708 is a wasteful number, since it uses less digits than its factorization.

2640105708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11579437 (or 11579435 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 2640105708 is about 51381.9589739434. The cubic root of 2640105708 is about 1382.1030923979.

The spelling of 2640105708 in words is "two billion, six hundred forty million, one hundred five thousand, seven hundred eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 11579411 23158822 34738233 46317644 69476466 138952932 220008809 440017618 660026427 880035236 1320052854 2640105708