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2668832660 = 2251312917951
BaseRepresentation
bin1001111100010011…
…0010011110010100
320212222212202011002
42133010302132110
520431210121120
61120454202432
7123064463144
oct23704623624
96788782132
102668832660
11114a53952a
12625953418
13336bc3330
141b463c924
1510947a375
hex9f132794

2668832660 has 48 divisors (see below), whose sum is σ = 6041102592. Its totient is φ = 984528000.

The previous prime is 2668832653. The next prime is 2668832693. The reversal of 2668832660 is 662388662.

2668832660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 331685 + ... + 339635.

It is an arithmetic number, because the mean of its divisors is an integer number (125856304).

Almost surely, 22668832660 is an apocalyptic number.

2668832660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2668832660 is an abundant number, since it is smaller than the sum of its proper divisors (3372269932).

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

2668832660 is a wasteful number, since it uses less digits than its factorization.

2668832660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9264 (or 9262 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 47.

The square root of 2668832660 is about 51660.7458327887. The cubic root of 2668832660 is about 1387.0979010677.

The spelling of 2668832660 in words is "two billion, six hundred sixty-eight million, eight hundred thirty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1291 2582 5164 6455 7951 12910 15902 16783 25820 31804 33566 39755 67132 79510 83915 103363 159020 167830 206726 335660 413452 516815 1033630 2067260 10264741 20529482 41058964 51323705 102647410 133441633 205294820 266883266 533766532 667208165 1334416330 2668832660