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22680615720 = 2335727000733
BaseRepresentation
bin10101000111110111…
…101011101100101000
32011112122120122201110
4111013313223230220
5332422214200340
614230324150320
71432022024040
oct250767535450
964478518643
1022680615720
119689686314
12448b8383a0
1321a5b65299
141152310720
158cb272680
hex547debb28

22680615720 has 64 divisors (see below), whose sum is σ = 77762113920. Its totient is φ = 5184140544.

The previous prime is 22680615691. The next prime is 22680615733. The reversal of 22680615720 is 2751608622.

It is a super-2 number, since 2×226806157202 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 13499527 + ... + 13501206.

It is an arithmetic number, because the mean of its divisors is an integer number (1215033030).

Almost surely, 222680615720 is an apocalyptic number.

22680615720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22680615720 is an abundant number, since it is smaller than the sum of its proper divisors (55081498200).

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

22680615720 is a wasteful number, since it uses less digits than its factorization.

22680615720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27000754 (or 27000750 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 22680615720 in words is "twenty-two billion, six hundred eighty million, six hundred fifteen thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 27000733 54001466 81002199 108002932 135003665 162004398 189005131 216005864 270007330 324008796 378010262 405010995 540014660 567015393 648017592 756020524 810021990 945025655 1080029320 1134030786 1512041048 1620043980 1890051310 2268061572 2835076965 3240087960 3780102620 4536123144 5670153930 7560205240 11340307860 22680615720