Base | Representation |
---|---|
bin | 10010110110110111… |
… | …11100100100001011 |
3 | 222010120001211121022 |
4 | 21123123330210023 |
5 | 131213220042321 |
6 | 4352332103055 |
7 | 505611320462 |
oct | 113333744413 |
9 | 28116054538 |
10 | 10123987211 |
11 | 43257aa488 |
12 | 1b66604a8b |
13 | c545ac1a0 |
14 | 6c07d99d9 |
15 | 3e3beedab |
hex | 25b6fc90b |
10123987211 has 16 divisors (see below), whose sum is σ = 11439704640. Its totient is φ = 8889471360.
The previous prime is 10123987207. The next prime is 10123987217. The reversal of 10123987211 is 11278932101.
It is a cyclic number.
It is not a de Polignac number, because 10123987211 - 22 = 10123987207 is a prime.
It is not an unprimeable number, because it can be changed into a prime (10123987217) by changing a digit.
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, 39416 + ... + 147653.
It is an arithmetic number, because the mean of its divisors is an integer number (714981540).
Almost surely, 210123987211 is an apocalyptic number.
10123987211 is a deficient number, since it is larger than the sum of its proper divisors (1315717429).
10123987211 is a wasteful number, since it uses less digits than its factorization.
10123987211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 187286.
The product of its (nonzero) digits is 6048, while the sum is 35.
The spelling of 10123987211 in words is "ten billion, one hundred twenty-three million, nine hundred eighty-seven thousand, two hundred eleven".
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