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22448933380 = 2251122446669
BaseRepresentation
bin10100111010000011…
…111000101000000100
32010221111121222022001
4110322003320220010
5331433411332010
614151330315044
71423206533236
oct247203705004
963844558261
1022448933380
11957a923a05
124426128a84
132169b67343
14112d642256
158b5c5ac3a
hex53a0f8a04

22448933380 has 12 divisors (see below), whose sum is σ = 47142760140. Its totient is φ = 8979573344.

The previous prime is 22448933359. The next prime is 22448933389. The reversal of 22448933380 is 8333984422.

It can be written as a sum of positive squares in 2 ways, for example, as 15510709764 + 6938223616 = 124542^2 + 83296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22448933380.

It is not an unprimeable number, because it can be changed into a prime (22448933389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561223315 + ... + 561223354.

It is an arithmetic number, because the mean of its divisors is an integer number (3928563345).

Almost surely, 222448933380 is an apocalyptic number.

22448933380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22448933380 is an abundant number, since it is smaller than the sum of its proper divisors (24693826760).

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

22448933380 is a wasteful number, since it uses less digits than its factorization.

22448933380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122446678 (or 1122446676 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 46.

The spelling of 22448933380 in words is "twenty-two billion, four hundred forty-eight million, nine hundred thirty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 1122446669 2244893338 4489786676 5612233345 11224466690 22448933380