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20041230220 = 22511179508919
BaseRepresentation
bin10010101010100011…
…001110011110001100
31220201201002222110221
4102222203032132030
5312021023331340
613112401041124
71306432434424
oct225243163614
956651088427
1020041230220
11855482a990
123a739261a4
131b750b240b
14d81979484
157c46b244a
hex4aa8ce78c

20041230220 has 48 divisors (see below), whose sum is σ = 46169222400. Its totient is φ = 7246992320.

The previous prime is 20041230199. The next prime is 20041230233. The reversal of 20041230220 is 2203214002.

It is a junction number, because it is equal to n+sod(n) for n = 20041230194 and 20041230203.

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 15 ways as a sum of consecutive naturals, for example, 215080 + ... + 293839.

It is an arithmetic number, because the mean of its divisors is an integer number (961858800).

Almost surely, 220041230220 is an apocalyptic number.

20041230220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20041230220 is an abundant number, since it is smaller than the sum of its proper divisors (26127992180).

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

20041230220 is a wasteful number, since it uses less digits than its factorization.

20041230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509118 (or 509116 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20041230220 its reverse (2203214002), we get a palindrome (22244444222).

The spelling of 20041230220 in words is "twenty billion, forty-one million, two hundred thirty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 179 220 358 716 895 1790 1969 3580 3938 7876 9845 19690 39380 508919 1017838 2035676 2544595 5089190 5598109 10178380 11196218 22392436 27990545 55981090 91096501 111962180 182193002 364386004 455482505 910965010 1002061511 1821930020 2004123022 4008246044 5010307555 10020615110 20041230220