Base | Representation |
---|---|
bin | 100100101110000… |
… | …0101111010100111 |
3 | 10011212102012212112 |
4 | 1021130011322213 |
5 | 10010404213111 |
6 | 322132111235 |
7 | 42350454200 |
oct | 11134057247 |
9 | 3155365775 |
10 | 1232101031 |
11 | 582541817 |
12 | 2a476551b |
13 | 168353885 |
14 | b98c85a7 |
15 | 7327be8b |
hex | 49705ea7 |
1232101031 has 6 divisors (see below), whose sum is σ = 1433260440. Its totient is φ = 1056086556.
The previous prime is 1232101021. The next prime is 1232101043. The reversal of 1232101031 is 1301012321.
It is not a de Polignac number, because 1232101031 - 26 = 1232100967 is a prime.
It is a super-2 number, since 2×12321010312 = 3036145901182525922, 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 = 1232100997 and 1232101015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1232101001) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12572411 + ... + 12572508.
It is an arithmetic number, because the mean of its divisors is an integer number (238876740).
Almost surely, 21232101031 is an apocalyptic number.
1232101031 is a deficient number, since it is larger than the sum of its proper divisors (201159409).
1232101031 is an equidigital number, since it uses as much as digits as its factorization.
1232101031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25144933 (or 25144926 counting only the distinct ones).
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 1232101031 is about 35101.2967139392. The cubic root of 1232101031 is about 1072.0509853484.
Adding to 1232101031 its reverse (1301012321), we get a palindrome (2533113352).
The spelling of 1232101031 in words is "one billion, two hundred thirty-two million, one hundred one thousand, thirty-one".
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