Base | Representation |
---|---|
bin | 11101001011100110… |
… | …000001100010010010 |
3 | 2222212122121211210212 |
4 | 131023212001202102 |
5 | 1003132223430114 |
6 | 22221051324122 |
7 | 2156314234535 |
oct | 351346014222 |
9 | 88778554725 |
10 | 31333030034 |
11 | 12319751249 |
12 | 60a5450642 |
13 | 2c545c6277 |
14 | 17334c6a1c |
15 | c35b90b3e |
hex | 74b981892 |
31333030034 has 4 divisors (see below), whose sum is σ = 46999545054. Its totient is φ = 15666515016.
The previous prime is 31333030033. The next prime is 31333030037. The reversal of 31333030034 is 43003033313.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43003033313 = 31 ⋅1387194623.
It can be written as a sum of positive squares in only one way, i.e., 23806947025 + 7526083009 = 154295^2 + 86753^2 .
It is a super-2 number, since 2×313330300342 (a number of 22 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 31333029991 and 31333030009.
It is not an unprimeable number, because it can be changed into a prime (31333030033) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7833257507 + ... + 7833257510.
Almost surely, 231333030034 is an apocalyptic number.
31333030034 is a deficient number, since it is larger than the sum of its proper divisors (15666515020).
31333030034 is a wasteful number, since it uses less digits than its factorization.
31333030034 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15666515019.
The product of its (nonzero) digits is 2916, while the sum is 23.
Adding to 31333030034 its reverse (43003033313), we get a palindrome (74336063347).
The spelling of 31333030034 in words is "thirty-one billion, three hundred thirty-three million, thirty thousand, thirty-four".
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