Base | Representation |
---|---|
bin | 101011111011… |
… | …0100101110001 |
3 | 1121100001101202 |
4 | 1113312211301 |
5 | 21343431004 |
6 | 2141340545 |
7 | 366516143 |
oct | 127664561 |
9 | 47301352 |
10 | 23030129 |
11 | 11aaa971 |
12 | 7867755 |
13 | 4a046c5 |
14 | 30b6c93 |
15 | 204db1e |
hex | 15f6971 |
23030129 has 2 divisors, whose sum is σ = 23030130. Its totient is φ = 23030128.
The previous prime is 23030101. The next prime is 23030131. The reversal of 23030129 is 92103032.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 18079504 + 4950625 = 4252^2 + 2225^2 .
It is a cyclic number.
It is not a de Polignac number, because 23030129 - 216 = 22964593 is a prime.
Together with 23030131, it forms a pair of twin primes.
It is a Chen prime.
It is an alternating number because its digits alternate between even and odd.
It is a self number, because there is not a number n which added to its sum of digits gives 23030129.
It is not a weakly prime, because it can be changed into another prime (23030629) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515064 + 11515065.
It is an arithmetic number, because the mean of its divisors is an integer number (11515065).
Almost surely, 223030129 is an apocalyptic number.
It is an amenable number.
23030129 is a deficient number, since it is larger than the sum of its proper divisors (1).
23030129 is an equidigital number, since it uses as much as digits as its factorization.
23030129 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 324, while the sum is 20.
The square root of 23030129 is about 4798.9716606790. The cubic root of 23030129 is about 284.5108218719.
The spelling of 23030129 in words is "twenty-three million, thirty thousand, one hundred twenty-nine".
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