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2288785968 = 243274155381
BaseRepresentation
bin1000100001101100…
…0001101000110000
312220111202101002200
42020123001220300
514141412122333
61015040343200
7110501234250
oct21033015060
95814671080
102288785968
11a74a61857
1253a614b00
132a6249b31
14179d8d960
15d5e08c13
hex886c1a30

2288785968 has 120 divisors (see below), whose sum is σ = 7499165856. Its totient is φ = 637977600.

The previous prime is 2288785957. The next prime is 2288785987. The reversal of 2288785968 is 8695878822.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 23 ways as a sum of consecutive naturals, for example, 13638 + ... + 69018.

Almost surely, 22288785968 is an apocalyptic number.

2288785968 is a gapful number since it is divisible by the number (28) 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 2288785968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3749582928).

2288785968 is an abundant number, since it is smaller than the sum of its proper divisors (5210379888).

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

2288785968 is a wasteful number, since it uses less digits than its factorization.

2288785968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55443 (or 55434 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The square root of 2288785968 is about 47841.2580102154. The cubic root of 2288785968 is about 1317.8573226997.

The spelling of 2288785968 in words is "two billion, two hundred eighty-eight million, seven hundred eighty-five thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 41 42 48 56 63 72 82 84 112 123 126 144 164 168 246 252 287 328 336 369 492 504 574 656 738 861 984 1008 1148 1476 1722 1968 2296 2583 2952 3444 4592 5166 5904 6888 10332 13776 20664 41328 55381 110762 166143 221524 332286 387667 443048 498429 664572 775334 886096 996858 1163001 1329144 1550668 1993716 2270621 2326002 2658288 3101336 3489003 3987432 4541242 4652004 6202672 6811863 6978006 7974864 9082484 9304008 13623726 13956012 15894347 18164968 18608016 20435589 27247452 27912024 31788694 36329936 40871178 47683041 54494904 55824048 63577388 81742356 95366082 108989808 127154776 143049123 163484712 190732164 254309552 286098246 326969424 381464328 572196492 762928656 1144392984 2288785968