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22109831080 = 2351929091883
BaseRepresentation
bin10100100101110110…
…010011111110101000
32010001212112210101121
4110211312103332220
5330240104043310
614053534225024
71411621314631
oct244566237650
963055483347
1022109831080
119416472377
124350655174
1321148284ac
1410da5b0888
158960c60da
hex525d93fa8

22109831080 has 32 divisors (see below), whose sum is σ = 52365391200. Its totient is φ = 8378462016.

The previous prime is 22109831077. The next prime is 22109831089. The reversal of 22109831080 is 8013890122.

It is a super-2 number, since 2×221098310802 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22109831089) 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, 14545182 + ... + 14546701.

It is an arithmetic number, because the mean of its divisors is an integer number (1636418475).

Almost surely, 222109831080 is an apocalyptic number.

22109831080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22109831080 is an abundant number, since it is smaller than the sum of its proper divisors (30255560120).

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

22109831080 is a wasteful number, since it uses less digits than its factorization.

22109831080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29091913 (or 29091909 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The spelling of 22109831080 in words is "twenty-two billion, one hundred nine million, eight hundred thirty-one thousand, eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 29091883 58183766 116367532 145459415 232735064 290918830 552745777 581837660 1105491554 1163675320 2210983108 2763728885 4421966216 5527457770 11054915540 22109831080