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20012120214 = 2317196197257
BaseRepresentation
bin10010101000110100…
…001011100010010110
31220122200100001001120
4102220310023202112
5311441100321324
613105441104410
71305630133542
oct225064134226
956580301046
1020012120214
11853a358129
123a66028106
131b6c05c568
14d7bb5ca22
157c1d62179
hex4a8d0b896

20012120214 has 16 divisors (see below), whose sum is σ = 42378607728. Its totient is φ = 6278312192.

The previous prime is 20012120207. The next prime is 20012120243. The reversal of 20012120214 is 41202121002.

It is a junction number, because it is equal to n+sod(n) for n = 20012120193 and 20012120202.

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, 98098527 + ... + 98098730.

It is an arithmetic number, because the mean of its divisors is an integer number (2648662983).

Almost surely, 220012120214 is an apocalyptic number.

20012120214 is an abundant number, since it is smaller than the sum of its proper divisors (22366487514).

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

20012120214 is a wasteful number, since it uses less digits than its factorization.

20012120214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196197279.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20012120214 its reverse (41202121002), we get a palindrome (61214241216).

The spelling of 20012120214 in words is "twenty billion, twelve million, one hundred twenty thousand, two hundred fourteen".

Divisors: 1 2 3 6 17 34 51 102 196197257 392394514 588591771 1177183542 3335353369 6670706738 10006060107 20012120214