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2668134680 = 235481313859
BaseRepresentation
bin1001111100001000…
…1000000100011000
320212221120021200222
42133002020010120
520431020302210
61120431215212
7123055525211
oct23702100430
96787507628
102668134680
11114a102092
12625677508
13336a0a723
141b44da408
1510938d655
hex9f088118

2668134680 has 32 divisors (see below), whose sum is σ = 6004983600. Its totient is φ = 1066955136.

The previous prime is 2668134661. The next prime is 2668134697. The reversal of 2668134680 is 864318662.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185591 + ... + 199449.

Almost surely, 22668134680 is an apocalyptic number.

2668134680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2668134680 is an abundant number, since it is smaller than the sum of its proper divisors (3336848920).

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

2668134680 is a wasteful number, since it uses less digits than its factorization.

2668134680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18683 (or 18679 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 2668134680 is about 51653.9899717340. The cubic root of 2668134680 is about 1386.9769679195.

The spelling of 2668134680 in words is "two billion, six hundred sixty-eight million, one hundred thirty-four thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 4813 9626 13859 19252 24065 27718 38504 48130 55436 69295 96260 110872 138590 192520 277180 554360 66703367 133406734 266813468 333516835 533626936 667033670 1334067340 2668134680