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20312102110 = 2510718983273
BaseRepresentation
bin10010111010101100…
…100001010011011110
31221102120210200212011
4102322230201103132
5313044344231420
613155314501434
71316232006406
oct227254412336
957376720764
1020312102110
118683719a53
123b2a59487a
131bb9252041
14da9929806
157dd36a95a
hex4bab214de

20312102110 has 16 divisors (see below), whose sum is σ = 36903484656. Its totient is φ = 8048907328.

The previous prime is 20312102087. The next prime is 20312102119. The reversal of 20312102110 is 1120121302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312102119) 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, 9490567 + ... + 9492706.

It is an arithmetic number, because the mean of its divisors is an integer number (2306467791).

Almost surely, 220312102110 is an apocalyptic number.

20312102110 is a deficient number, since it is larger than the sum of its proper divisors (16591382546).

20312102110 is a wasteful number, since it uses less digits than its factorization.

20312102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18983387.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20312102110 its reverse (1120121302), we get a palindrome (21432223412).

The spelling of 20312102110 in words is "twenty billion, three hundred twelve million, one hundred two thousand, one hundred ten".

Divisors: 1 2 5 10 107 214 535 1070 18983273 37966546 94916365 189832730 2031210211 4062420422 10156051055 20312102110