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20000332120 = 235598474717
BaseRepresentation
bin10010101000000111…
…001101100101011000
31220121212011010211111
4102220013031211120
5311430041111440
613104340310104
71305425006116
oct225007154530
956555133744
1020000332120
1185337365aa
123a620a2334
131b69792b62
14d7a370ab6
157c0cd44ea
hex4a81cd958

20000332120 has 32 divisors (see below), whose sum is σ = 45763477200. Its totient is φ = 7864536448.

The previous prime is 20000332103. The next prime is 20000332141. The reversal of 20000332120 is 2123300002.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20000332120.

It is a congruent number.

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, 4234999 + ... + 4239718.

Almost surely, 220000332120 is an apocalyptic number.

20000332120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000332120 is an abundant number, since it is smaller than the sum of its proper divisors (25763145080).

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

20000332120 is a wasteful number, since it uses less digits than its factorization.

20000332120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8474787 (or 8474783 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20000332120 its reverse (2123300002), we get a palindrome (22123632122).

The spelling of 20000332120 in words is "twenty billion, three hundred thirty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 59 118 236 295 472 590 1180 2360 8474717 16949434 33898868 42373585 67797736 84747170 169494340 338988680 500008303 1000016606 2000033212 2500041515 4000066424 5000083030 10000166060 20000332120