Base | Representation |
---|---|
bin | 1110100111100… |
… | …11001000111001 |
3 | 22112202021201021 |
4 | 13103303020321 |
5 | 222343140323 |
6 | 20100222441 |
7 | 3016225642 |
oct | 723631071 |
9 | 275667637 |
10 | 122630713 |
11 | 632492a7 |
12 | 3509aa21 |
13 | 1c53846a |
14 | 124026c9 |
15 | ab7505d |
hex | 74f3239 |
122630713 has 4 divisors (see below), whose sum is σ = 125621748. Its totient is φ = 119639680.
The previous prime is 122630671. The next prime is 122630719. The reversal of 122630713 is 317036221.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 317036221 = 137 ⋅2314133.
It can be written as a sum of positive squares in 2 ways, for example, as 68343289 + 54287424 = 8267^2 + 7368^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-122630713 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (122630719) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1495456 + ... + 1495537.
It is an arithmetic number, because the mean of its divisors is an integer number (31405437).
Almost surely, 2122630713 is an apocalyptic number.
It is an amenable number.
122630713 is a deficient number, since it is larger than the sum of its proper divisors (2991035).
122630713 is an equidigital number, since it uses as much as digits as its factorization.
122630713 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2991034.
The product of its (nonzero) digits is 1512, while the sum is 25.
The square root of 122630713 is about 11073.8752476267. The cubic root of 122630713 is about 496.8207786145.
Adding to 122630713 its reverse (317036221), we get a palindrome (439666934).
The spelling of 122630713 in words is "one hundred twenty-two million, six hundred thirty thousand, seven hundred thirteen".
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