Search a number
-
+
20321414420210 = 257128621710451
BaseRepresentation
bin1001001111011011100101…
…01100000001011011110010
32122221201010022101210102022
410213231302230001123302
510130421224042421320
6111115310124351442
74165113410353241
oct447556254013362
978851108353368
1020321414420210
116525299731182
1223425146a5582
13b453bb8474b7
145037c146c958
15253917553325
hex127b72b016f2

20321414420210 has 16 divisors (see below), whose sum is σ = 37093736745792. Its totient is φ = 8014078926000.

The previous prime is 20321414420183. The next prime is 20321414420261. The reversal of 20321414420210 is 1202441412302.

It is a self number, because there is not a number n which added to its sum of digits gives 20321414420210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14310854516 + ... + 14310855935.

It is an arithmetic number, because the mean of its divisors is an integer number (2318358546612).

Almost surely, 220321414420210 is an apocalyptic number.

20321414420210 is a deficient number, since it is larger than the sum of its proper divisors (16772322325582).

20321414420210 is a wasteful number, since it uses less digits than its factorization.

20321414420210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28621710529.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 20321414420210 its reverse (1202441412302), we get a palindrome (21523855832512).

The spelling of 20321414420210 in words is "twenty trillion, three hundred twenty-one billion, four hundred fourteen million, four hundred twenty thousand, two hundred ten".

Divisors: 1 2 5 10 71 142 355 710 28621710451 57243420902 143108552255 286217104510 2032141442021 4064282884042 10160707210105 20321414420210