Base | Representation |
---|---|
bin | 101100000110… |
… | …1010001010101 |
3 | 1121111202211111 |
4 | 1120031101111 |
5 | 21404414104 |
6 | 2143335021 |
7 | 400354036 |
oct | 130152125 |
9 | 47452744 |
10 | 23123029 |
11 | 12063746 |
12 | 78b1471 |
13 | 4a37a87 |
14 | 30dca8d |
15 | 206b404 |
hex | 160d455 |
23123029 has 2 divisors, whose sum is σ = 23123030. Its totient is φ = 23123028.
The previous prime is 23122991. The next prime is 23123047. The reversal of 23123029 is 92032132.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 22944100 + 178929 = 4790^2 + 423^2 .
It is a cyclic number.
It is not a de Polignac number, because 23123029 - 215 = 23090261 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23123729) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561514 + 11561515.
It is an arithmetic number, because the mean of its divisors is an integer number (11561515).
Almost surely, 223123029 is an apocalyptic number.
It is an amenable number.
23123029 is a deficient number, since it is larger than the sum of its proper divisors (1).
23123029 is an equidigital number, since it uses as much as digits as its factorization.
23123029 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 648, while the sum is 22.
The square root of 23123029 is about 4808.6410762293. The cubic root of 23123029 is about 284.8928662680.
The spelling of 23123029 in words is "twenty-three million, one hundred twenty-three thousand, twenty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •