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2809968342 = 23678978539
BaseRepresentation
bin1010011101111100…
…1011011011010110
321020211110011220120
42213133023123112
521223322441332
61142455212410
7126430223346
oct24737133326
97224404816
102809968342
111212176895
12665077106
1335a20a57c
141c929ad26
15116a5832c
hexa77cb6d6

2809968342 has 32 divisors (see below), whose sum is σ = 5767977600. Its totient is φ = 912297408.

The previous prime is 2809968331. The next prime is 2809968383. The reversal of 2809968342 is 2438699082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3492 + ... + 75047.

It is an arithmetic number, because the mean of its divisors is an integer number (180249300).

Almost surely, 22809968342 is an apocalyptic number.

2809968342 is an abundant number, since it is smaller than the sum of its proper divisors (2958009258).

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

2809968342 is a wasteful number, since it uses less digits than its factorization.

2809968342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78700.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The square root of 2809968342 is about 53009.1345147230. The cubic root of 2809968342 is about 1411.1303817077.

The spelling of 2809968342 in words is "two billion, eight hundred nine million, nine hundred sixty-eight thousand, three hundred forty-two".

Divisors: 1 2 3 6 67 89 134 178 201 267 402 534 5963 11926 17889 35778 78539 157078 235617 471234 5262113 6989971 10524226 13979942 15786339 20969913 31572678 41939826 468328057 936656114 1404984171 2809968342