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22168926380 = 2251948356893
BaseRepresentation
bin10100101001010111…
…101111100010101100
32010012222202010220102
4110221113233202230
5330400221121010
614103445010232
71413236523266
oct245127574254
963188663812
1022168926380
119446865567
1243683b3978
132123b49723
141104394b36
1589b39aba5
hex5295ef8ac

22168926380 has 24 divisors (see below), whose sum is σ = 46557953232. Its totient is φ = 8866959552.

The previous prime is 22168926319. The next prime is 22168926383. The reversal of 22168926380 is 8362986122.

It is a super-2 number, since 2×221689263802 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22168926383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361214 + ... + 418106.

It is an arithmetic number, because the mean of its divisors is an integer number (1939914718).

Almost surely, 222168926380 is an apocalyptic number.

22168926380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22168926380 is an abundant number, since it is smaller than the sum of its proper divisors (24389026852).

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

22168926380 is a wasteful number, since it uses less digits than its factorization.

22168926380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76385 (or 76383 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 22168926380 in words is "twenty-two billion, one hundred sixty-eight million, nine hundred twenty-six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 19483 38966 56893 77932 97415 113786 194830 227572 284465 389660 568930 1137860 1108446319 2216892638 4433785276 5542231595 11084463190 22168926380