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2801926668 = 2231676472161
BaseRepresentation
bin1010011100000010…
…0000001000001100
321020021022121210210
42213000200020030
521214243123133
61142011002420
7126301661262
oct24700401014
97207277723
102801926668
111208683a82
12662439410
13358653198
141c81a6432
15115eba763
hexa702020c

2801926668 has 48 divisors (see below), whose sum is σ = 6590191104. Its totient is φ = 926519040.

The previous prime is 2801926651. The next prime is 2801926691. The reversal of 2801926668 is 8666291082.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 1295508 + ... + 1297668.

It is an arithmetic number, because the mean of its divisors is an integer number (137295648).

Almost surely, 22801926668 is an apocalyptic number.

It is an amenable number.

2801926668 is an abundant number, since it is smaller than the sum of its proper divisors (3788264436).

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

2801926668 is a wasteful number, since it uses less digits than its factorization.

2801926668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982 (or 2980 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 2801926668 is about 52933.2283920034. The cubic root of 2801926668 is about 1409.7829533622.

The spelling of 2801926668 in words is "two billion, eight hundred one million, nine hundred twenty-six thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 167 334 501 647 668 1002 1294 1941 2004 2161 2588 3882 4322 6483 7764 8644 12966 25932 108049 216098 324147 360887 432196 648294 721774 1082661 1296588 1398167 1443548 2165322 2796334 4194501 4330644 5592668 8389002 16778004 233493889 466987778 700481667 933975556 1400963334 2801926668