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22121414430 = 2351938809499
BaseRepresentation
bin10100100110100010…
…011111111100011110
32010002200100021202120
4110212202133330132
5330301040230210
614055030403410
71412121630423
oct244642377436
963080307676
1022121414430
119421a64095
124354500566
13211705294b
1410dbd47d4a
15897113270
hex52689ff1e

22121414430 has 32 divisors (see below), whose sum is σ = 55885680000. Its totient is φ = 5588567712.

The previous prime is 22121414417. The next prime is 22121414431. The reversal of 22121414430 is 3441412122.

It is a self number, because there is not a number n which added to its sum of digits gives 22121414430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121414431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19404180 + ... + 19405319.

It is an arithmetic number, because the mean of its divisors is an integer number (1746427500).

Almost surely, 222121414430 is an apocalyptic number.

22121414430 is an abundant number, since it is smaller than the sum of its proper divisors (33764265570).

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

22121414430 is a wasteful number, since it uses less digits than its factorization.

22121414430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38809528.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 22121414430 its reverse (3441412122), we get a palindrome (25562826552).

The spelling of 22121414430 in words is "twenty-two billion, one hundred twenty-one million, four hundred fourteen thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 570 38809499 77618998 116428497 194047495 232856994 388094990 582142485 737380481 1164284970 1474760962 2212141443 3686902405 4424282886 7373804810 11060707215 22121414430