Base | Representation |
---|---|
bin | 10010101010110111… |
… | …00101111010010001 |
3 | 221212112110220020021 |
4 | 21111123211322101 |
5 | 131011421343441 |
6 | 4334332343441 |
7 | 503246026111 |
oct | 112533457221 |
9 | 27775426207 |
10 | 10023231121 |
11 | 4283941992 |
12 | 1b38914b81 |
13 | c397624b7 |
14 | 6b128d041 |
15 | 3d9e4b3d1 |
hex | 2556e5e91 |
10023231121 has 2 divisors, whose sum is σ = 10023231122. Its totient is φ = 10023231120.
The previous prime is 10023231089. The next prime is 10023231131. The reversal of 10023231121 is 12113232001.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 8810450496 + 1212780625 = 93864^2 + 34825^2 .
It is a cyclic number.
It is not a de Polignac number, because 10023231121 - 25 = 10023231089 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 10023231095 and 10023231104.
It is not a weakly prime, because it can be changed into another prime (10023231131) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011615560 + 5011615561.
It is an arithmetic number, because the mean of its divisors is an integer number (5011615561).
Almost surely, 210023231121 is an apocalyptic number.
It is an amenable number.
10023231121 is a deficient number, since it is larger than the sum of its proper divisors (1).
10023231121 is an equidigital number, since it uses as much as digits as its factorization.
10023231121 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 72, while the sum is 16.
Adding to 10023231121 its reverse (12113232001), we get a palindrome (22136463122).
The spelling of 10023231121 in words is "ten billion, twenty-three million, two hundred thirty-one thousand, one hundred twenty-one".
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