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22272420160 = 2651941471901
BaseRepresentation
bin10100101111100010…
…100010100101000000
32010111012111011200101
4110233202202211000
5331103214421120
614122023132144
71415634306364
oct245742424500
963435434611
1022272420160
11949a222a11
124396ba4054
13213c414553
1411140152a4
158a54e090a
hex52f8a2940

22272420160 has 224 divisors, whose sum is σ = 58436743680. Its totient is φ = 8054784000.

The previous prime is 22272420143. The next prime is 22272420161. The reversal of 22272420160 is 6102427222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22272420161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11715210 + ... + 11717110.

It is an arithmetic number, because the mean of its divisors is an integer number (260878320).

Almost surely, 222272420160 is an apocalyptic number.

22272420160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22272420160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29218371840).

22272420160 is an abundant number, since it is smaller than the sum of its proper divisors (36164323520).

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

22272420160 is a wasteful number, since it uses less digits than its factorization.

22272420160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 22272420160 its reverse (6102427222), we get a palindrome (28374847382).

The spelling of 22272420160 in words is "twenty-two billion, two hundred seventy-two million, four hundred twenty thousand, one hundred sixty".