Base | Representation |
---|---|
bin | 100100101110001… |
… | …0000011101100111 |
3 | 10011212111102010112 |
4 | 1021130100131213 |
5 | 10010412103411 |
6 | 322133043235 |
7 | 42351024143 |
oct | 11134203547 |
9 | 3155442115 |
10 | 1232144231 |
11 | 58257121a |
12 | 2a478651b |
13 | 16836a436 |
14 | b98da223 |
15 | 73289b8b |
hex | 49710767 |
1232144231 has 8 divisors (see below), whose sum is σ = 1267339920. Its totient is φ = 1197245952.
The previous prime is 1232144209. The next prime is 1232144237. The reversal of 1232144231 is 1324412321.
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 1232144231 - 210 = 1232143207 is a prime.
It is a super-2 number, since 2×12321442312 = 3036358811973162722, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1232144197 and 1232144206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1232144237) 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, 65936 + ... + 82533.
It is an arithmetic number, because the mean of its divisors is an integer number (158417490).
Almost surely, 21232144231 is an apocalyptic number.
1232144231 is a deficient number, since it is larger than the sum of its proper divisors (35195689).
1232144231 is a wasteful number, since it uses less digits than its factorization.
1232144231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 148705.
The product of its digits is 1152, while the sum is 23.
The square root of 1232144231 is about 35101.9120704272. The cubic root of 1232144231 is about 1072.0635146405.
Adding to 1232144231 its reverse (1324412321), we get a palindrome (2556556552).
The spelling of 1232144231 in words is "one billion, two hundred thirty-two million, one hundred forty-four thousand, two hundred thirty-one".
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