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2668152660 = 2235128934499
BaseRepresentation
bin1001111100001000…
…1100011101010100
320212221121012100220
42133002030131110
520431021341120
61120431434340
7123055631505
oct23702143524
96787535326
102668152660
11114a114648
126256859b0
13336a15974
141b4502bac
15109393b40
hex9f08c754

2668152660 has 48 divisors (see below), whose sum is σ = 7476840000. Its totient is φ = 710934784.

The previous prime is 2668152649. The next prime is 2668152661. The reversal of 2668152660 is 662518662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668152661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60091 + ... + 94589.

It is an arithmetic number, because the mean of its divisors is an integer number (155767500).

Almost surely, 22668152660 is an apocalyptic number.

2668152660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2668152660 is an abundant number, since it is smaller than the sum of its proper divisors (4808687340).

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

2668152660 is a wasteful number, since it uses less digits than its factorization.

2668152660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35800 (or 35798 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 2668152660 is about 51654.1640141431. The cubic root of 2668152660 is about 1386.9800834281.

The spelling of 2668152660 in words is "two billion, six hundred sixty-eight million, one hundred fifty-two thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1289 2578 3867 5156 6445 7734 12890 15468 19335 25780 34499 38670 68998 77340 103497 137996 172495 206994 344990 413988 517485 689980 1034970 2069940 44469211 88938422 133407633 177876844 222346055 266815266 444692110 533630532 667038165 889384220 1334076330 2668152660