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20000330220 = 22351325641449
BaseRepresentation
bin10010101000000111…
…001101000111101100
31220121212011001020010
4102220013031013230
5311430041031340
613104340253220
71305425000433
oct225007150754
956555131203
1020000330220
118533735132
123a620a1210
131b69792030
14d7a37011a
157c0cd3b80
hex4a81cd1ec

20000330220 has 48 divisors (see below), whose sum is σ = 60308690400. Its totient is φ = 4923158016.

The previous prime is 20000330209. The next prime is 20000330299. The reversal of 20000330220 is 2203300002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20000330196 and 20000330205.

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, 12819945 + ... + 12821504.

It is an arithmetic number, because the mean of its divisors is an integer number (1256431050).

Almost surely, 220000330220 is an apocalyptic number.

20000330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000330220 is an abundant number, since it is smaller than the sum of its proper divisors (40308360180).

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

20000330220 is a wasteful number, since it uses less digits than its factorization.

20000330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25641474 (or 25641472 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 20000330220 its reverse (2203300002), we get a palindrome (22203630222).

The spelling of 20000330220 in words is "twenty billion, three hundred thirty thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 25641449 51282898 76924347 102565796 128207245 153848694 256414490 307697388 333338837 384621735 512828980 666677674 769243470 1000016511 1333355348 1538486940 1666694185 2000033022 3333388370 4000066044 5000082555 6666776740 10000165110 20000330220