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22212004430 = 25711110326153
BaseRepresentation
bin10100101011111100…
…000100101001001110
32010022222210201212202
4110223330010221032
5330442233120210
614112024201502
71414301631260
oct245374045116
963288721782
1022212004430
119469108760
12437a909292
13212ca502b5
141109da9b30
158a00599a5
hex52bf04a4e

22212004430 has 64 divisors (see below), whose sum is σ = 49894299648. Its totient is φ = 6916680960.

The previous prime is 22212004411. The next prime is 22212004439. The reversal of 22212004430 is 3440021222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212004439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 836234 + ... + 862386.

It is an arithmetic number, because the mean of its divisors is an integer number (779598432).

Almost surely, 222212004430 is an apocalyptic number.

22212004430 is an abundant number, since it is smaller than the sum of its proper divisors (27682295218).

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

22212004430 is a wasteful number, since it uses less digits than its factorization.

22212004430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27281.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22212004430 its reverse (3440021222), we get a palindrome (25652025652).

The spelling of 22212004430 in words is "twenty-two billion, two hundred twelve million, four thousand, four hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 770 1103 2206 5515 7721 11030 12133 15442 24266 26153 38605 52306 60665 77210 84931 121330 130765 169862 183071 261530 287683 366142 424655 575366 849310 915355 1438415 1830710 2013781 2876830 4027562 10068905 20137810 28846759 57693518 144233795 201927313 288467590 317314349 403854626 634628698 1009636565 1586571745 2019273130 2221200443 3173143490 4442400886 11106002215 22212004430