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22404000020 = 2256716719403
BaseRepresentation
bin10100110111011000…
…011110100100010100
32010211101002010022112
4110313120132210110
5331340411000040
614143043250152
71422122600213
oct246730364424
963741063275
1022404000020
1195575238a6
124413079958
13216076415c
1411276a707a
158b1d32365
hex53761e914

22404000020 has 24 divisors (see below), whose sum is σ = 47750617824. Its totient is φ = 8827844256.

The previous prime is 22404000019. The next prime is 22404000037. The reversal of 22404000020 is 2000040422.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22403999959 and 22404000004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8358362 + ... + 8361041.

It is an arithmetic number, because the mean of its divisors is an integer number (1989609076).

Almost surely, 222404000020 is an apocalyptic number.

22404000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22404000020 is an abundant number, since it is smaller than the sum of its proper divisors (25346617804).

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

22404000020 is a wasteful number, since it uses less digits than its factorization.

22404000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16719479 (or 16719477 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22404000020 its reverse (2000040422), we get a palindrome (24404040442).

The spelling of 22404000020 in words is "twenty-two billion, four hundred four million, twenty", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 67 134 268 335 670 1340 16719403 33438806 66877612 83597015 167194030 334388060 1120200001 2240400002 4480800004 5601000005 11202000010 22404000020