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1688083640760 = 2335111278851243
BaseRepresentation
bin11000100100001001101…
…000000011000110111000
312222101020110012001102110
4120210021220003012320
5210124143403001020
63331254522532320
7232650200124306
oct30441150030670
95871213161373
101688083640760
115a0a04230510
122331b39670a0
13c3254a0752a
145b9bcca3276
152dd9e5c08e0
hex18909a031b8

1688083640760 has 64 divisors (see below), whose sum is σ = 5524637374080. Its totient is φ = 409232397440.

The previous prime is 1688083640701. The next prime is 1688083640773. The reversal of 1688083640760 is 670463808861.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1688083640760.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639424302 + ... + 639426941.

It is an arithmetic number, because the mean of its divisors is an integer number (86322458970).

Almost surely, 21688083640760 is an apocalyptic number.

1688083640760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1688083640760 is an abundant number, since it is smaller than the sum of its proper divisors (3836553733320).

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

1688083640760 is a wasteful number, since it uses less digits than its factorization.

1688083640760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278851268 (or 1278851264 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 1688083640760 in words is "one trillion, six hundred eighty-eight billion, eighty-three million, six hundred forty thousand, seven hundred sixty".

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 1278851243 2557702486 3836553729 5115404972 6394256215 7673107458 10230809944 12788512430 14067363673 15346214916 19182768645 25577024860 28134727346 30692429832 38365537290 42202091019 51154049720 56269454692 70336818365 76731074580 84404182038 112538909384 140673636730 153462149160 168808364076 211010455095 281347273460 337616728152 422020910190 562694546920 844041820380 1688083640760