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20368459212 = 2231823931087
BaseRepresentation
bin10010111110000011…
…100000010111001100
31221120111211221021020
4102332003200113030
5313203311143322
613205050434140
71320515022003
oct227603402714
957514757236
1020368459212
118702511972
123b45432950
131bc7b24b3a
14db31d9c3a
157e329e05c
hex4be0e05cc

20368459212 has 24 divisors (see below), whose sum is σ = 47552526336. Its totient is φ = 6785754768.

The previous prime is 20368459159. The next prime is 20368459229. The reversal of 20368459212 is 21295486302.

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, 443668 + ... + 487419.

It is an arithmetic number, because the mean of its divisors is an integer number (1981355264).

Almost surely, 220368459212 is an apocalyptic number.

It is an amenable number.

20368459212 is an abundant number, since it is smaller than the sum of its proper divisors (27184067124).

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

20368459212 is a wasteful number, since it uses less digits than its factorization.

20368459212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932917 (or 932915 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 20368459212 in words is "twenty billion, three hundred sixty-eight million, four hundred fifty-nine thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 1823 3646 5469 7292 10938 21876 931087 1862174 2793261 3724348 5586522 11173044 1697371601 3394743202 5092114803 6789486404 10184229606 20368459212