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22404242020 = 2251471761531
BaseRepresentation
bin10100110111011001…
…011001101001100100
32010211101112102021111
4110313121121221210
5331340441221040
614143052354404
71422124625566
oct246731315144
963741472244
1022404242020
1195576796a6
124413175a04
13216081a354
14112772b336
158b1d7ddea
hex537659a64

22404242020 has 24 divisors (see below), whose sum is σ = 47080954368. Its totient is φ = 8955592800.

The previous prime is 22404241987. The next prime is 22404242071. The reversal of 22404242020 is 2024240422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22404241982 and 22404242000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351346 + ... + 410185.

It is an arithmetic number, because the mean of its divisors is an integer number (1961706432).

Almost surely, 222404242020 is an apocalyptic number.

22404242020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22404242020 is an abundant number, since it is smaller than the sum of its proper divisors (24676712348).

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

22404242020 is a wasteful number, since it uses less digits than its factorization.

22404242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763011 (or 763009 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22404242020 its reverse (2024240422), we get a palindrome (24428482442).

The spelling of 22404242020 in words is "twenty-two billion, four hundred four million, two hundred forty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 1471 2942 5884 7355 14710 29420 761531 1523062 3046124 3807655 7615310 15230620 1120212101 2240424202 4480848404 5601060505 11202121010 22404242020