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20322006168 = 23319251177553
BaseRepresentation
bin10010111011010010…
…010011010010011000
31221110021102212200010
4102323102103102120
5313104413144133
613200311041520
71316412126252
oct227322232230
957407385603
1020322006168
118689274022
123b319702a0
131bbb30c029
14daad86cd2
157de175263
hex4bb493498

20322006168 has 64 divisors (see below), whose sum is σ = 53692329600. Its totient is φ = 6391872000.

The previous prime is 20322006161. The next prime is 20322006181. The reversal of 20322006168 is 86160022302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322006161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25680 + ... + 203232.

It is an arithmetic number, because the mean of its divisors is an integer number (838942650).

Almost surely, 220322006168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20322006168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26846164800).

20322006168 is an abundant number, since it is smaller than the sum of its proper divisors (33370323432).

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

20322006168 is a wasteful number, since it uses less digits than its factorization.

20322006168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177832 (or 177828 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 20322006168 in words is "twenty billion, three hundred twenty-two million, six thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 251 456 502 753 1004 1506 2008 3012 4769 6024 9538 14307 19076 28614 38152 57228 114456 177553 355106 532659 710212 1065318 1420424 2130636 3373507 4261272 6747014 10120521 13494028 20241042 26988056 40482084 44565803 80964168 89131606 133697409 178263212 267394818 356526424 534789636 846750257 1069579272 1693500514 2540250771 3387001028 5080501542 6774002056 10161003084 20322006168