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7868344372 = 2271937616553
BaseRepresentation
bin1110101001111110…
…10110100000110100
3202022100200022022221
413110333112200310
5112103244004442
63340433532124
7365661552340
oct72477264064
922270608287
107868344372
113378525649
121637114044
13985197b95
14548dd6620
15310b91467
hex1d4fd6834

7868344372 has 96 divisors (see below), whose sum is σ = 17294170880. Its totient is φ = 3056901120.

The previous prime is 7868344369. The next prime is 7868344373. The reversal of 7868344372 is 2734438687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7868344373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1197448 + ... + 1204000.

Almost surely, 27868344372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7868344372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8647085440).

7868344372 is an abundant number, since it is smaller than the sum of its proper divisors (9425826508).

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

7868344372 is a wasteful number, since it uses less digits than its factorization.

7868344372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6681 (or 6679 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 52.

The square root of 7868344372 is about 88703.6886042514. The cubic root of 7868344372 is about 1988.9679565643.

The spelling of 7868344372 in words is "seven billion, eight hundred sixty-eight million, three hundred forty-four thousand, three hundred seventy-two".

Divisors: 1 2 4 7 14 19 28 37 38 61 74 76 122 133 148 244 259 266 427 518 532 703 854 1036 1159 1406 1708 2257 2318 2812 4514 4636 4921 6553 8113 9028 9842 13106 15799 16226 19684 26212 31598 32452 42883 45871 63196 85766 91742 124507 171532 183484 242461 249014 300181 399733 484922 498028 600362 799466 871549 969844 1200724 1598932 1697227 1743098 2798131 3394454 3486196 4606759 5596262 6788908 7594927 9213518 11192524 14790121 15189854 18427036 29580242 30379708 32247313 53164489 59160484 64494626 103530847 106328978 128989252 207061694 212657956 281012299 414123388 562024598 1124049196 1967086093 3934172186 7868344372