Base | Representation |
---|---|
bin | 10011001101010011… |
… | …01010111001010111 |
3 | 222121200002200210110 |
4 | 21212221222321113 |
5 | 132104401243411 |
6 | 4423132454103 |
7 | 513354460200 |
oct | 114651527127 |
9 | 28550080713 |
10 | 10312134231 |
11 | 4411a27093 |
12 | 1bb961a333 |
13 | c84576399 |
14 | 6db7b45a7 |
15 | 4054b72a6 |
hex | 266a6ae57 |
10312134231 has 24 divisors (see below), whose sum is σ = 15998164464. Its totient is φ = 5891235840.
The previous prime is 10312134199. The next prime is 10312134277. The reversal of 10312134231 is 13243121301.
It is not a de Polignac number, because 10312134231 - 25 = 10312134199 is a prime.
It is a super-2 number, since 2×103121342312 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 10312134198 and 10312134207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10312133231) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1124541 + ... + 1133673.
It is an arithmetic number, because the mean of its divisors is an integer number (666590186).
Almost surely, 210312134231 is an apocalyptic number.
10312134231 is a deficient number, since it is larger than the sum of its proper divisors (5686030233).
10312134231 is an equidigital number, since it uses as much as digits as its factorization.
10312134231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 16831 (or 16824 counting only the distinct ones).
The product of its (nonzero) digits is 432, while the sum is 21.
Adding to 10312134231 its reverse (13243121301), we get a palindrome (23555255532).
The spelling of 10312134231 in words is "ten billion, three hundred twelve million, one hundred thirty-four thousand, two hundred thirty-one".
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