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680088880086 = 2371153247711213
BaseRepresentation
bin10011110010110000111…
…01001100001111010110
32102000102120012201001020
421321120131030033112
542120310223130321
61240232320542010
7100064144046150
oct11713035141726
92360376181036
10680088880086
112424734965a0
12ab980481906
134c194311595
1424cb8b57ad0
1512a560464c6
hex9e5874c3d6

680088880086 has 128 divisors (see below), whose sum is σ = 1728654068736. Its totient is φ = 173228090880.

The previous prime is 680088880061. The next prime is 680088880087.

680088880086 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680088880087) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60646216 + ... + 60657428.

It is an arithmetic number, because the mean of its divisors is an integer number (13505109912).

Almost surely, 2680088880086 is an apocalyptic number.

680088880086 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 680088880086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864327034368).

680088880086 is an abundant number, since it is smaller than the sum of its proper divisors (1048565188650).

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

680088880086 is a wasteful number, since it uses less digits than its factorization.

680088880086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13766.

The product of its (nonzero) digits is 9437184, while the sum is 60.

The spelling of 680088880086 in words is "six hundred eighty billion, eighty-eight million, eight hundred eighty thousand, eighty-six".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 53 66 77 106 154 159 231 318 371 462 583 742 1113 1166 1749 2226 2477 3498 4081 4954 7431 8162 11213 12243 14862 17339 22426 24486 27247 33639 34678 52017 54494 67278 78491 81741 104034 123343 131281 156982 163482 190729 235473 246686 262562 370029 381458 393843 470946 572187 594289 740058 787686 863401 918967 1144374 1188578 1444091 1726802 1782867 1837934 2590203 2756901 2888182 3565734 4160023 4332273 5180406 5513802 6537179 8320046 8664546 10108637 12480069 13074358 19611537 20217274 24960138 27774601 30325911 39223074 45760253 55549202 60651822 83323803 91520506 137280759 166647606 194422207 274561518 305520611 388844414 583266621 611041222 916561833 1166533242 1472053853 1833123666 2138644277 2944107706 4277288554 4416161559 6415932831 8832323118 10304376971 12831865662 16192592383 20608753942 30913130913 32385184766 48577777149 61826261826 97155554298 113348146681 226696293362 340044440043 680088880086