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20123201022 = 2316411204367
BaseRepresentation
bin10010101111011011…
…111010110111111110
31220221102100112021120
4102233123322313332
5312203014413042
613124450011410
71311446246361
oct225733726776
956842315246
1020123201022
118597027851
123a97276b66
131b89082852
14d8c7d60d8
157cb9a4dec
hex4af6fadfe

20123201022 has 16 divisors (see below), whose sum is σ = 40249051392. Its totient is φ = 6707292120.

The previous prime is 20123201003. The next prime is 20123201029. The reversal of 20123201022 is 22010232102.

It is a happy number.

20123201022 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 20123200992 and 20123201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123201029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3718 + ... + 200649.

It is an arithmetic number, because the mean of its divisors is an integer number (2515565712).

Almost surely, 220123201022 is an apocalyptic number.

20123201022 is an abundant number, since it is smaller than the sum of its proper divisors (20125850370).

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

20123201022 is a wasteful number, since it uses less digits than its factorization.

20123201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220783.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20123201022 its reverse (22010232102), we get a palindrome (42133433124).

The spelling of 20123201022 in words is "twenty billion, one hundred twenty-three million, two hundred one thousand, twenty-two".

Divisors: 1 2 3 6 16411 32822 49233 98466 204367 408734 613101 1226202 3353866837 6707733674 10061600511 20123201022