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22820608668 = 223111313298723
BaseRepresentation
bin10101010000001101…
…101101101010011100
32011220102000000221110
4111100031231222130
5333214033434133
614252244502020
71435341654534
oct252015555234
964812000843
1022820608668
119750703070
12450a6aa910
1321c8b6c350
141166b524c4
158d86c6c63
hex55036da9c

22820608668 has 48 divisors (see below), whose sum is σ = 62557197696. Its totient is φ = 6383386560.

The previous prime is 22820608667. The next prime is 22820608729. The reversal of 22820608668 is 86680602822.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22820608661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6647646 + ... + 6651077.

It is an arithmetic number, because the mean of its divisors is an integer number (1303274952).

Almost surely, 222820608668 is an apocalyptic number.

It is an amenable number.

22820608668 is an abundant number, since it is smaller than the sum of its proper divisors (39736589028).

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

22820608668 is a wasteful number, since it uses less digits than its factorization.

22820608668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13298754 (or 13298752 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 22820608668 in words is "twenty-two billion, eight hundred twenty million, six hundred eight thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 132 143 156 286 429 572 858 1716 13298723 26597446 39896169 53194892 79792338 146285953 159584676 172883399 292571906 345766798 438857859 518650197 585143812 691533596 877715718 1037300394 1755431436 1901717389 2074600788 3803434778 5705152167 7606869556 11410304334 22820608668