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22212025430 = 2571916700771
BaseRepresentation
bin10100101011111100…
…001001110001010110
32010022222211210200112
4110223330021301112
5330442234303210
614112024443022
71414302046430
oct245374116126
963288753615
1022212025430
119469122511
12437a919472
13212ca59a1a
141109db3650
158a0060d05
hex52bf09c56

22212025430 has 32 divisors (see below), whose sum is σ = 48098223360. Its totient is φ = 7214732640.

The previous prime is 22212025417. The next prime is 22212025439. The reversal of 22212025430 is 3452021222.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22212025396 and 22212025405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212025439) 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, 8349056 + ... + 8351715.

It is an arithmetic number, because the mean of its divisors is an integer number (1503069480).

Almost surely, 222212025430 is an apocalyptic number.

22212025430 is an abundant number, since it is smaller than the sum of its proper divisors (25886197930).

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

22212025430 is a wasteful number, since it uses less digits than its factorization.

22212025430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16700804.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 22212025430 its reverse (3452021222), we get a palindrome (25664046652).

The spelling of 22212025430 in words is "twenty-two billion, two hundred twelve million, twenty-five thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 19 35 38 70 95 133 190 266 665 1330 16700771 33401542 83503855 116905397 167007710 233810794 317314649 584526985 634629298 1169053970 1586573245 2221202543 3173146490 4442405086 11106012715 22212025430