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9687808680 = 2335117339249
BaseRepresentation
bin10010000010111000…
…00011101010101000
3221000011022200010220
421001130003222220
5124320034334210
64241151210040
7462034005114
oct110134035250
927004280126
109687808680
114121574060
121a64516920
13bb5111594
1467c8d8744
153ba791c70
hex241703aa8

9687808680 has 64 divisors (see below), whose sum is σ = 31705560000. Its totient is φ = 2348559360.

The previous prime is 9687808657. The next prime is 9687808693. The reversal of 9687808680 is 868087869.

It is a Harshad number since it is a multiple of its sum of digits (60).

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 15 ways as a sum of consecutive naturals, for example, 3668305 + ... + 3670944.

It is an arithmetic number, because the mean of its divisors is an integer number (495399375).

Almost surely, 29687808680 is an apocalyptic number.

It is an amenable number.

9687808680 is an abundant number, since it is smaller than the sum of its proper divisors (22017751320).

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

9687808680 is a wasteful number, since it uses less digits than its factorization.

9687808680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7339274 (or 7339270 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 60.

The square root of 9687808680 is about 98426.6665086246. Note that the first 3 decimals coincide. The cubic root of 9687808680 is about 2131.7773874743. Note that the first 3 decimals are identical.

The spelling of 9687808680 in words is "nine billion, six hundred eighty-seven million, eight hundred eight thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 88 110 120 132 165 220 264 330 440 660 1320 7339249 14678498 22017747 29356996 36696245 44035494 58713992 73392490 80731739 88070988 110088735 146784980 161463478 176141976 220177470 242195217 293569960 322926956 403658695 440354940 484390434 645853912 807317390 880709880 968780868 1210976085 1614634780 1937561736 2421952170 3229269560 4843904340 9687808680