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22022130320 = 245275276629
BaseRepresentation
bin10100100000100111…
…110000101010010000
32002211202112010120022
4110200213300222100
5330100131132240
614041122403012
71406505006401
oct244047605220
962752463508
1022022130320
119380a11503
124327200468
1320cc5ccc58
1410ccaa19a8
1588d5509b5
hex5209f0a90

22022130320 has 20 divisors (see below), whose sum is σ = 51201453180. Its totient is φ = 8808852096.

The previous prime is 22022130313. The next prime is 22022130359. The reversal of 22022130320 is 2303122022.

It can be written as a sum of positive squares in 2 ways, for example, as 10437482896 + 11584647424 = 102164^2 + 107632^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137638235 + ... + 137638394.

It is an arithmetic number, because the mean of its divisors is an integer number (2560072659).

Almost surely, 222022130320 is an apocalyptic number.

22022130320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022130320 is an abundant number, since it is smaller than the sum of its proper divisors (29179322860).

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

22022130320 is a wasteful number, since it uses less digits than its factorization.

22022130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275276642 (or 275276636 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22022130320 its reverse (2303122022), we get a palindrome (24325252342).

The spelling of 22022130320 in words is "twenty-two billion, twenty-two million, one hundred thirty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 275276629 550553258 1101106516 1376383145 2202213032 2752766290 4404426064 5505532580 11011065160 22022130320