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22402442620 = 2253497974027
BaseRepresentation
bin10100110111010010…
…100010010101111100
32010211021010222222001
4110313102202111330
5331340011130440
614142550032044
71422103422535
oct246722422574
963737128861
1022402442620
11955665a798
124412648624
13216033a30c
1411273bd68c
158b1b25b9a
hex5374a257c

22402442620 has 48 divisors (see below), whose sum is σ = 47250856800. Its totient is φ = 8921873664.

The previous prime is 22402442593. The next prime is 22402442627. The reversal of 22402442620 is 2624420422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22402442627) 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, 5561047 + ... + 5565073.

It is an arithmetic number, because the mean of its divisors is an integer number (984392850).

Almost surely, 222402442620 is an apocalyptic number.

22402442620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22402442620 is an abundant number, since it is smaller than the sum of its proper divisors (24848414180).

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

22402442620 is a wasteful number, since it uses less digits than its factorization.

22402442620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182 (or 5180 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The spelling of 22402442620 in words is "twenty-two billion, four hundred two million, four hundred forty-two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 349 698 797 1396 1594 1745 3188 3490 3985 4027 6980 7970 8054 15940 16108 20135 40270 80540 278153 556306 1112612 1390765 1405423 2781530 2810846 3209519 5563060 5621692 6419038 7027115 12838076 14054230 16047595 28108460 32095190 64190380 1120122131 2240244262 4480488524 5600610655 11201221310 22402442620