Base | Representation |
---|---|
bin | 10010111010000110… |
… | …000001101011110001 |
3 | 1221101212211000121211 |
4 | 102322012001223301 |
5 | 313034303323441 |
6 | 13154314320121 |
7 | 1316050150540 |
oct | 227206015361 |
9 | 57355730554 |
10 | 20302011121 |
11 | 8678a57497 |
12 | 3b27129041 |
13 | 1bb712ac42 |
14 | da8460157 |
15 | 7dc525a81 |
hex | 4ba181af1 |
20302011121 has 32 divisors (see below), whose sum is σ = 24159168000. Its totient is φ = 16692383232.
The previous prime is 20302011113. The next prime is 20302011127. The reversal of 20302011121 is 12111020302.
It is not a de Polignac number, because 20302011121 - 23 = 20302011113 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (20302011127) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36448575 + ... + 36449131.
It is an arithmetic number, because the mean of its divisors is an integer number (754974000).
Almost surely, 220302011121 is an apocalyptic number.
It is an amenable number.
20302011121 is a deficient number, since it is larger than the sum of its proper divisors (3857156879).
20302011121 is a wasteful number, since it uses less digits than its factorization.
20302011121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1441.
The product of its (nonzero) digits is 24, while the sum is 13.
Adding to 20302011121 its reverse (12111020302), we get a palindrome (32413031423).
The spelling of 20302011121 in words is "twenty billion, three hundred two million, eleven thousand, one hundred twenty-one".
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