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22246444960 = 255139040281
BaseRepresentation
bin10100101101111111…
…011100111110100000
32010102101121111101221
4110231333130332200
5331030042214320
614115254304424
71415200443055
oct245577347640
963371544357
1022246444960
1194865a1403
12438a358114
132136c1b4cc
1411107b302c
158a30ae3aa
hex52dfdcfa0

22246444960 has 24 divisors (see below), whose sum is σ = 52557226596. Its totient is φ = 8898577920.

The previous prime is 22246444949. The next prime is 22246444973. The reversal of 22246444960 is 6944464222.

It can be written as a sum of positive squares in 2 ways, for example, as 22211729296 + 34715664 = 149036^2 + 5892^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69519981 + ... + 69520300.

Almost surely, 222246444960 is an apocalyptic number.

22246444960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22246444960 is an abundant number, since it is smaller than the sum of its proper divisors (30310781636).

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

22246444960 is a wasteful number, since it uses less digits than its factorization.

22246444960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139040296 (or 139040288 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 22246444960 in words is "twenty-two billion, two hundred forty-six million, four hundred forty-four thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 139040281 278080562 556161124 695201405 1112322248 1390402810 2224644496 2780805620 4449288992 5561611240 11123222480 22246444960