Base | Representation |
---|---|
bin | 11101000101011101… |
… | …000011001010101010 |
3 | 2222121110210002112201 |
4 | 131011131003022222 |
5 | 1002424340422442 |
6 | 22202531330414 |
7 | 2153623511566 |
oct | 350535031252 |
9 | 88543702481 |
10 | 31230014122 |
11 | 1227658a92a |
12 | 6076a50a0a |
13 | 2c39167ac8 |
14 | 172394c6a6 |
15 | c2bae27b7 |
hex | 7457432aa |
31230014122 has 4 divisors (see below), whose sum is σ = 46845021186. Its totient is φ = 15615007060.
The previous prime is 31230014089. The next prime is 31230014129. The reversal of 31230014122 is 22141003213.
It is a happy number.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 27962862841 + 3267151281 = 167221^2 + 57159^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 31230014122.
It is not an unprimeable number, because it can be changed into a prime (31230014129) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7807503529 + ... + 7807503532.
Almost surely, 231230014122 is an apocalyptic number.
31230014122 is a deficient number, since it is larger than the sum of its proper divisors (15615007064).
31230014122 is a wasteful number, since it uses less digits than its factorization.
31230014122 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15615007063.
The product of its (nonzero) digits is 288, while the sum is 19.
Adding to 31230014122 its reverse (22141003213), we get a palindrome (53371017335).
The spelling of 31230014122 in words is "thirty-one billion, two hundred thirty million, fourteen thousand, one hundred twenty-two".
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