Base | Representation |
---|---|
bin | 10111001001110010… |
… | …11101100101011111 |
3 | 1012002021121202020110 |
4 | 23210321131211133 |
5 | 200424113000411 |
6 | 5413234221103 |
7 | 620013661365 |
oct | 134471354537 |
9 | 35067552213 |
10 | 12430203231 |
11 | 52a9586736 |
12 | 24aaa24793 |
13 | 123131c754 |
14 | 85cc05635 |
15 | 4cb3ed2a6 |
hex | 2e4e5d95f |
12430203231 has 8 divisors (see below), whose sum is σ = 16586567680. Its totient is φ = 8280320472.
The previous prime is 12430203229. The next prime is 12430203239. The reversal of 12430203231 is 13230203421.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12430203231 - 21 = 12430203229 is a prime.
It is a super-2 number, since 2×124302032312 (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 = 12430203198 and 12430203207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12430203239) 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, 1615945 + ... + 1623618.
It is an arithmetic number, because the mean of its divisors is an integer number (2073320960).
Almost surely, 212430203231 is an apocalyptic number.
12430203231 is a deficient number, since it is larger than the sum of its proper divisors (4156364449).
12430203231 is a wasteful number, since it uses less digits than its factorization.
12430203231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3240845.
The product of its (nonzero) digits is 864, while the sum is 21.
Adding to 12430203231 its reverse (13230203421), we get a palindrome (25660406652).
The spelling of 12430203231 in words is "twelve billion, four hundred thirty million, two hundred three thousand, two hundred thirty-one".
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