Base | Representation |
---|---|
bin | 10010101110001011… |
… | …100010110110111010 |
3 | 1220212221201001211012 |
4 | 102232023202312322 |
5 | 312132121144010 |
6 | 13122414233522 |
7 | 1311102203204 |
oct | 225613426672 |
9 | 56787631735 |
10 | 20102131130 |
11 | 8586146714 |
12 | 3a901b58a2 |
13 | 1b848b6463 |
14 | d89aad774 |
15 | 7c9be2005 |
hex | 4ae2e2dba |
20102131130 has 32 divisors (see below), whose sum is σ = 36328082688. Its totient is φ = 8008862400.
The previous prime is 20102131111. The next prime is 20102131183. The reversal of 20102131130 is 3113120102.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2871935 + ... + 2878925.
It is an arithmetic number, because the mean of its divisors is an integer number (1135252584).
Almost surely, 220102131130 is an apocalyptic number.
20102131130 is a deficient number, since it is larger than the sum of its proper divisors (16225951558).
20102131130 is a wasteful number, since it uses less digits than its factorization.
20102131130 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8102.
The product of its (nonzero) digits is 36, while the sum is 14.
Adding to 20102131130 its reverse (3113120102), we get a palindrome (23215251232).
The spelling of 20102131130 in words is "twenty billion, one hundred two million, one hundred thirty-one thousand, one hundred thirty".
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