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2668893360 = 243574138747
BaseRepresentation
bin1001111100010100…
…0001010010110000
320212222222211102020
42133011001102300
520431214041420
61120455351440
7123065135130
oct23705012260
96788884366
102668893360
11114a5800a1
12625982580
13336c14b53
141b4656ac0
1510948d340
hex9f1414b0

2668893360 has 160 divisors (see below), whose sum is σ = 9686380032. Its totient is φ = 595138560.

The previous prime is 2668893329. The next prime is 2668893373. The reversal of 2668893360 is 633988662.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49507 + ... + 88253.

Almost surely, 22668893360 is an apocalyptic number.

2668893360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2668893360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4843190016).

2668893360 is an abundant number, since it is smaller than the sum of its proper divisors (7017486672).

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

2668893360 is a wasteful number, since it uses less digits than its factorization.

2668893360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38811 (or 38805 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The square root of 2668893360 is about 51661.3333161273. Note that the first 4 decimals coincide. The cubic root of 2668893360 is about 1387.1084170517.

The spelling of 2668893360 in words is "two billion, six hundred sixty-eight million, eight hundred ninety-three thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 41 42 48 56 60 70 80 82 84 105 112 120 123 140 164 168 205 210 240 246 280 287 328 336 410 420 492 560 574 615 656 820 840 861 984 1148 1230 1435 1640 1680 1722 1968 2296 2460 2870 3280 3444 4305 4592 4920 5740 6888 8610 9840 11480 13776 17220 22960 34440 38747 68880 77494 116241 154988 193735 232482 271229 309976 387470 464964 542458 581205 619952 774940 813687 929928 1084916 1162410 1356145 1549880 1588627 1627374 1859856 2169832 2324820 2712290 3099760 3177254 3254748 4068435 4339664 4649640 4765881 5424580 6354508 6509496 7943135 8136870 9299280 9531762 10849160 11120389 12709016 13018992 15886270 16273740 19063524 21698320 22240778 23829405 25418032 31772540 32547480 33361167 38127048 44481556 47658810 55601945 63545080 65094960 66722334 76254096 88963112 95317620 111203890 127090160 133444668 166805835 177926224 190635240 222407780 266889336 333611670 381270480 444815560 533778672 667223340 889631120 1334446680 2668893360