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22423332880 = 24513131164587
BaseRepresentation
bin10100111000100010…
…001110100000010000
32010212201110100000101
4110320202032200100
5331410333123010
614145013502144
71422446120224
oct247042164020
963781410011
1022423332880
119567428973
124419641954
132164772a10
14112a09a784
158b38a073a
hex53888e810

22423332880 has 80 divisors (see below), whose sum is σ = 56573504064. Its totient is φ = 8216133120.

The previous prime is 22423332859. The next prime is 22423332917. The reversal of 22423332880 is 8823332422.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53947 + ... + 218533.

Almost surely, 222423332880 is an apocalyptic number.

22423332880 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 22423332880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28286752032).

22423332880 is an abundant number, since it is smaller than the sum of its proper divisors (34150171184).

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

22423332880 is a wasteful number, since it uses less digits than its factorization.

22423332880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164744 (or 164738 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 22423332880 in words is "twenty-two billion, four hundred twenty-three million, three hundred thirty-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 131 208 260 262 520 524 655 1040 1048 1310 1703 2096 2620 3406 5240 6812 8515 10480 13624 17030 27248 34060 68120 136240 164587 329174 658348 822935 1316696 1645870 2139631 2633392 3291740 4279262 6583480 8558524 10698155 13166960 17117048 21396310 21560897 34234096 42792620 43121794 85585240 86243588 107804485 171170480 172487176 215608970 280291661 344974352 431217940 560583322 862435880 1121166644 1401458305 1724871760 2242333288 2802916610 4484666576 5605833220 11211666440 22423332880