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2868305880 = 2335114152999
BaseRepresentation
bin1010101011110110…
…1101111111011000
321101220020000222010
42222331231333120
521333241242010
61152341425520
7131036124546
oct25275557730
97356200863
102868305880
1112420a1730
1268070b2a0
1336932491b
141d2d24d96
1511bc2d620
hexaaf6dfd8

2868305880 has 128 divisors (see below), whose sum is σ = 9616320000. Its totient is φ = 678374400.

The previous prime is 2868305863. The next prime is 2868305899. The reversal of 2868305880 is 885038682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27621 + ... + 80619.

It is an arithmetic number, because the mean of its divisors is an integer number (75127500).

Almost surely, 22868305880 is an apocalyptic number.

2868305880 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 2868305880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4808160000).

2868305880 is an abundant number, since it is smaller than the sum of its proper divisors (6748014120).

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

2868305880 is a wasteful number, since it uses less digits than its factorization.

2868305880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53065 (or 53061 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 48.

The square root of 2868305880 is about 53556.5671043244. The cubic root of 2868305880 is about 1420.8290272418.

The spelling of 2868305880 in words is "two billion, eight hundred sixty-eight million, three hundred five thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 41 44 55 60 66 82 88 110 120 123 132 164 165 205 220 246 264 328 330 410 440 451 492 615 660 820 902 984 1230 1320 1353 1640 1804 2255 2460 2706 3608 4510 4920 5412 6765 9020 10824 13530 18040 27060 52999 54120 105998 158997 211996 264995 317994 423992 529990 582989 635988 794985 1059980 1165978 1271976 1589970 1748967 2119960 2172959 2331956 2914945 3179940 3497934 4345918 4663912 5829890 6359880 6518877 6995868 8691836 8744835 10864795 11659780 13037754 13991736 17383672 17489670 21729590 23319560 23902549 26075508 32594385 34979340 43459180 47805098 52151016 65188770 69958680 71707647 86918360 95610196 119512745 130377540 143415294 191220392 239025490 260755080 286830588 358538235 478050980 573661176 717076470 956101960 1434152940 2868305880