Base | Representation |
---|---|
bin | 11000101001001100… |
… | …00001000011111111 |
3 | 1021011001100120100102 |
4 | 30110212001003333 |
5 | 204043441141111 |
6 | 10024501351315 |
7 | 645601434554 |
oct | 142446010377 |
9 | 37131316312 |
10 | 13230412031 |
11 | 567a24a421 |
12 | 2692a0853b |
13 | 132b046695 |
14 | 8d71c6a2b |
15 | 5267b713b |
hex | 3149810ff |
13230412031 has 8 divisors (see below), whose sum is σ = 13283247504. Its totient is φ = 13177644480.
The previous prime is 13230412021. The next prime is 13230412123. The reversal of 13230412031 is 13021403231.
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 13230412031 - 26 = 13230411967 is a prime.
It is a super-2 number, since 2×132304120312 (a number of 21 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13230411994 and 13230412012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13230412021) 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, 392921 + ... + 425261.
It is an arithmetic number, because the mean of its divisors is an integer number (1660405938).
Almost surely, 213230412031 is an apocalyptic number.
13230412031 is a deficient number, since it is larger than the sum of its proper divisors (52835473).
13230412031 is a wasteful number, since it uses less digits than its factorization.
13230412031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33961.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 13230412031 its reverse (13021403231), we get a palindrome (26251815262).
The spelling of 13230412031 in words is "thirteen billion, two hundred thirty million, four hundred twelve thousand, thirty-one".
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