Base | Representation |
---|---|
bin | 1110110010111… |
… | …11011111111011 |
3 | 22122120002221000 |
4 | 13121133133323 |
5 | 223233420011 |
6 | 20152220043 |
7 | 3035013006 |
oct | 731373773 |
9 | 278502830 |
10 | 124123131 |
11 | 64078600 |
12 | 3569a623 |
13 | 1c93b852 |
14 | 126b053d |
15 | ad6c356 |
hex | 765f7fb |
124123131 has 24 divisors (see below), whose sum is σ = 202128080. Its totient is φ = 75224160.
The previous prime is 124123093. The next prime is 124123133. The reversal of 124123131 is 131321421.
It is not a de Polignac number, because 124123131 - 27 = 124123003 is a prime.
It is a super-2 number, since 2×1241231312 = 30813103298486322, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (124123133) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15730 + ... + 22263.
Almost surely, 2124123131 is an apocalyptic number.
124123131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
124123131 is a deficient number, since it is larger than the sum of its proper divisors (78004949).
124123131 is a wasteful number, since it uses less digits than its factorization.
124123131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 38024 (or 38007 counting only the distinct ones).
The product of its digits is 144, while the sum is 18.
The square root of 124123131 is about 11141.0560989522. The cubic root of 124123131 is about 498.8280967649.
Adding to 124123131 its reverse (131321421), we get a palindrome (255444552).
The spelling of 124123131 in words is "one hundred twenty-four million, one hundred twenty-three thousand, one hundred thirty-one".
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