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20442241020 = 22352331462249
BaseRepresentation
bin10011000010011100…
…111101011111111100
31221202122200102212210
4103002130331133330
5313331203203040
613220244100420
71322402116215
oct230234753774
957678612783
1020442241020
118740126273
123b66094710
131c0a1b8b06
14dbcd2440c
157e99c5480
hex4c273d7fc

20442241020 has 48 divisors (see below), whose sum is σ = 57483972000. Its totient is φ = 5427864576.

The previous prime is 20442241013. The next prime is 20442241031. The reversal of 20442241020 is 2014224402.

It is a congruent number.

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, 717145 + ... + 745104.

It is an arithmetic number, because the mean of its divisors is an integer number (1197582750).

Almost surely, 220442241020 is an apocalyptic number.

20442241020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20442241020 is an abundant number, since it is smaller than the sum of its proper divisors (37041730980).

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

20442241020 is a wasteful number, since it uses less digits than its factorization.

20442241020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462494 (or 1462492 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 20442241020 its reverse (2014224402), we get a palindrome (22456465422).

The spelling of 20442241020 in words is "twenty billion, four hundred forty-two million, two hundred forty-one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 233 466 699 932 1165 1398 2330 2796 3495 4660 6990 13980 1462249 2924498 4386747 5848996 7311245 8773494 14622490 17546988 21933735 29244980 43867470 87734940 340704017 681408034 1022112051 1362816068 1703520085 2044224102 3407040170 4088448204 5110560255 6814080340 10221120510 20442241020