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136966569880 = 2357269880903
BaseRepresentation
bin111111110001111010…
…1111111111110011000
3111002112102202122220111
41333203311333332120
54221001420214010
6142531020534104
712616105430500
oct1774365777630
9432472678814
10136966569880
11530a60701a8
12226659b1334
13cbba2a442a
1468b4802a00
15386977758a
hex1fe3d7ff98

136966569880 has 48 divisors (see below), whose sum is σ = 358489037520. Its totient is φ = 46959966144.

The previous prime is 136966569863. The next prime is 136966569917. The reversal of 136966569880 is 88965669631.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34938492 + ... + 34942411.

It is an arithmetic number, because the mean of its divisors is an integer number (7468521615).

Almost surely, 2136966569880 is an apocalyptic number.

136966569880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136966569880 is an abundant number, since it is smaller than the sum of its proper divisors (221522467640).

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

136966569880 is a wasteful number, since it uses less digits than its factorization.

136966569880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69880928 (or 69880917 counting only the distinct ones).

The product of its (nonzero) digits is 100776960, while the sum is 67.

The spelling of 136966569880 in words is "one hundred thirty-six billion, nine hundred sixty-six million, five hundred sixty-nine thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 392 490 980 1960 69880903 139761806 279523612 349404515 489166321 559047224 698809030 978332642 1397618060 1956665284 2445831605 2795236120 3424164247 3913330568 4891663210 6848328494 9783326420 13696656988 17120821235 19566652840 27393313976 34241642470 68483284940 136966569880