Base | Representation |
---|---|
bin | 1110101101011… |
… | …10010101011101 |
3 | 22121012020111122 |
4 | 13112232111131 |
5 | 223042204334 |
6 | 20124500325 |
7 | 3025601246 |
oct | 726562535 |
9 | 277166448 |
10 | 123397469 |
11 | 63722388 |
12 | 353aa6a5 |
13 | 1c746470 |
14 | 12561ccd |
15 | ac7732e |
hex | 75ae55d |
123397469 has 16 divisors (see below), whose sum is σ = 135136512. Its totient is φ = 111998208.
The previous prime is 123397459. The next prime is 123397471. The reversal of 123397469 is 964793321.
It is a cyclic number.
It is not a de Polignac number, because 123397469 - 28 = 123397213 is a prime.
It is a super-2 number, since 2×1233974692 = 30453870711211922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123397459) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245072 + ... + 245574.
It is an arithmetic number, because the mean of its divisors is an integer number (8446032).
Almost surely, 2123397469 is an apocalyptic number.
It is an amenable number.
123397469 is a deficient number, since it is larger than the sum of its proper divisors (11739043).
123397469 is a wasteful number, since it uses less digits than its factorization.
123397469 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 796.
The product of its digits is 244944, while the sum is 44.
The square root of 123397469 is about 11108.4413398100. The cubic root of 123397469 is about 497.8540953622.
The spelling of 123397469 in words is "one hundred twenty-three million, three hundred ninety-seven thousand, four hundred sixty-nine".
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