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22423122100 = 2252224231221
BaseRepresentation
bin10100111000100001…
…011011000010110100
32010212201001121212201
4110320201123002310
5331410304401400
614145005154244
71422444251551
oct247041330264
963781047781
1022423122100
1195672a4575
12441955b984
1321646caab2
14112a043a28
158b385d06a
hex53885b0b4

22423122100 has 18 divisors (see below), whose sum is σ = 48658175174. Its totient is φ = 8969248800.

The previous prime is 22423122083. The next prime is 22423122121. The reversal of 22423122100 is 122132422.

It can be written as a sum of positive squares in 3 ways, for example, as 7557172624 + 14865949476 = 86932^2 + 121926^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112115511 + ... + 112115710.

Almost surely, 222423122100 is an apocalyptic number.

22423122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22423122100 is an abundant number, since it is smaller than the sum of its proper divisors (26235053074).

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

22423122100 is a wasteful number, since it uses less digits than its factorization.

22423122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224231235 (or 224231228 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22423122100 its reverse (122132422), we get a palindrome (22545254522).

The spelling of 22423122100 in words is "twenty-two billion, four hundred twenty-three million, one hundred twenty-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 224231221 448462442 896924884 1121156105 2242312210 4484624420 5605780525 11211561050 22423122100