Base | Representation |
---|---|
bin | 1110101100111… |
… | …10010110111111 |
3 | 22121001220202000 |
4 | 13112132112333 |
5 | 223033111111 |
6 | 20123233343 |
7 | 3025206414 |
oct | 726362677 |
9 | 277056660 |
10 | 123332031 |
11 | 636881a9 |
12 | 35378853 |
13 | 1c722744 |
14 | 1254610b |
15 | ac62c56 |
hex | 759e5bf |
123332031 has 16 divisors (see below), whose sum is σ = 183321600. Its totient is φ = 81948024.
The previous prime is 123331993. The next prime is 123332087. The reversal of 123332031 is 130233321.
It is not a de Polignac number, because 123332031 - 27 = 123331903 is a prime.
It is a super-2 number, since 2×1233320312 = 30421579741169922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 123331995 and 123332013.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (123331031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 850 + ... + 15728.
It is an arithmetic number, because the mean of its divisors is an integer number (11457600).
Almost surely, 2123332031 is an apocalyptic number.
123332031 is a deficient number, since it is larger than the sum of its proper divisors (59989569).
123332031 is a wasteful number, since it uses less digits than its factorization.
123332031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15195 (or 15189 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
The square root of 123332031 is about 11105.4955314925. The cubic root of 123332031 is about 497.7660753590.
Adding to 123332031 its reverse (130233321), we get a palindrome (253565352).
The spelling of 123332031 in words is "one hundred twenty-three million, three hundred thirty-two thousand, thirty-one".
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