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2688007716 = 223286412
BaseRepresentation
bin1010000000110111…
…1011111000100100
320221022221221101100
42200031323320210
521001112221331
61122421200100
7123416455122
oct24015737044
96838857340
102688007716
11115a345a89
12630260030
1333ab78114
141b6dd0912
1510aeb6ae6
hexa037be24

2688007716 has 27 divisors (see below), whose sum is σ = 6795472593. Its totient is φ = 895898880.

The previous prime is 2688007697. The next prime is 2688007739. The reversal of 2688007716 is 6177008862.

The square root of 2688007716 is 51846.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 74753316 + 2613254400 = 8646^2 + 51120^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 306756 + ... + 315396.

Almost surely, 22688007716 is an apocalyptic number.

2688007716 is the 51846-th square number.

It is an amenable number.

2688007716 is an abundant number, since it is smaller than the sum of its proper divisors (4107464877).

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

2688007716 is an frugal number, since it uses more digits than its factorization.

2688007716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17292 (or 8646 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The cubic root of 2688007716 is about 1390.4119883611.

The spelling of 2688007716 in words is "two billion, six hundred eighty-eight million, seven thousand, seven hundred sixteen".

Divisors: 1 2 3 4 6 9 12 18 36 8641 17282 25923 34564 51846 77769 103692 155538 311076 74666881 149333762 224000643 298667524 448001286 672001929 896002572 1344003858 2688007716