Base | Representation |
---|---|
bin | 1110101011001… |
… | …10100001100011 |
3 | 22120122022000122 |
4 | 13111212201203 |
5 | 223003301311 |
6 | 20114310455 |
7 | 3023234561 |
oct | 725464143 |
9 | 276568018 |
10 | 123103331 |
11 | 6354139a |
12 | 3528842b |
13 | 1c672610 |
14 | 124c6a31 |
15 | ac1a0db |
hex | 7566863 |
123103331 has 8 divisors (see below), whose sum is σ = 134389920. Its totient is φ = 112076352.
The previous prime is 123103319. The next prime is 123103339. The reversal of 123103331 is 133301321.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 123103331 - 226 = 55994467 is a prime.
It is a super-2 number, since 2×1231033312 = 30308860206591122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (123103339) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63911 + ... + 65808.
It is an arithmetic number, because the mean of its divisors is an integer number (16798740).
Almost surely, 2123103331 is an apocalyptic number.
123103331 is a deficient number, since it is larger than the sum of its proper divisors (11286589).
123103331 is a wasteful number, since it uses less digits than its factorization.
123103331 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 129805.
The product of its (nonzero) digits is 162, while the sum is 17.
The square root of 123103331 is about 11095.1940496775. The cubic root of 123103331 is about 497.4582084875.
Adding to 123103331 its reverse (133301321), we get a palindrome (256404652).
The spelling of 123103331 in words is "one hundred twenty-three million, one hundred three thousand, three hundred thirty-one".
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