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20312201102 = 2101238342197
BaseRepresentation
bin10010111010101100…
…111001011110001110
31221102120222201122112
4102322230321132032
5313044410413402
613155320544022
71316232601124
oct227254713616
957376881575
1020312201102
118683787366
123b2a622012
131bb928810b
14da9953914
157dd389e52
hex4bab3978e

20312201102 has 16 divisors (see below), whose sum is σ = 30783609792. Its totient is φ = 10051087200.

The previous prime is 20312201033. The next prime is 20312201111. The reversal of 20312201102 is 20110221302.

It is a happy number.

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, 460268 + ... + 502464.

It is an arithmetic number, because the mean of its divisors is an integer number (1923975612).

Almost surely, 220312201102 is an apocalyptic number.

20312201102 is a deficient number, since it is larger than the sum of its proper divisors (10471408690).

20312201102 is a wasteful number, since it uses less digits than its factorization.

20312201102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44683.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20312201102 its reverse (20110221302), we get a palindrome (40422422404).

The spelling of 20312201102 in words is "twenty billion, three hundred twelve million, two hundred one thousand, one hundred two".

Divisors: 1 2 101 202 2383 4766 42197 84394 240683 481366 4261897 8523794 100555451 201110902 10156100551 20312201102