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22423120412 = 22711409917761
BaseRepresentation
bin10100111000100001…
…011010101000011100
32010212201001112120012
4110320201122220130
5331410304323122
614145005142352
71422444243620
oct247041325034
963781045505
1022423120412
1195672a3280
12441955a9b8
1321646ca0b4
14112a043180
158b385c7e2
hex53885aa1c

22423120412 has 48 divisors (see below), whose sum is σ = 48937862400. Its totient is φ = 8733657600.

The previous prime is 22423120399. The next prime is 22423120429. The reversal of 22423120412 is 21402132422.

It is a super-2 number, since 2×224231204122 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1253612 + ... + 1271372.

It is an arithmetic number, because the mean of its divisors is an integer number (1019538800).

Almost surely, 222423120412 is an apocalyptic number.

22423120412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22423120412 is an abundant number, since it is smaller than the sum of its proper divisors (26514741988).

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

22423120412 is a wasteful number, since it uses less digits than its factorization.

22423120412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21882 (or 21880 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22423120412 its reverse (21402132422), we get a palindrome (43825252834).

The spelling of 22423120412 in words is "twenty-two billion, four hundred twenty-three million, one hundred twenty thousand, four hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 4099 8198 16396 17761 28693 35522 45089 57386 71044 90178 114772 124327 180356 195371 248654 315623 390742 497308 631246 781484 1262492 1367597 2735194 5470388 72802339 145604678 291209356 509616373 800825729 1019232746 1601651458 2038465492 3203302916 5605780103 11211560206 22423120412