Base | Representation |
---|---|
bin | 11101001011011011… |
… | …010101111111011010 |
3 | 2222212110100121012120 |
4 | 131023123111333122 |
5 | 1003131014331414 |
6 | 22220511322110 |
7 | 2156251364052 |
oct | 351333257732 |
9 | 88773317176 |
10 | 31330230234 |
11 | 12318109766 |
12 | 60a4520336 |
13 | 2c53b55a94 |
14 | 1732d98562 |
15 | c357db2a9 |
hex | 74b6d5fda |
31330230234 has 16 divisors (see below), whose sum is σ = 65958379680. Its totient is φ = 9893756880.
The previous prime is 31330230203. The next prime is 31330230263. The reversal of 31330230234 is 43203203313.
It is a happy number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137413177 + ... + 137413404.
It is an arithmetic number, because the mean of its divisors is an integer number (4122398730).
Almost surely, 231330230234 is an apocalyptic number.
31330230234 is an abundant number, since it is smaller than the sum of its proper divisors (34628149446).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31330230234 is a wasteful number, since it uses less digits than its factorization.
31330230234 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 274826605.
The product of its (nonzero) digits is 3888, while the sum is 24.
Adding to 31330230234 its reverse (43203203313), we get a palindrome (74533433547).
The spelling of 31330230234 in words is "thirty-one billion, three hundred thirty million, two hundred thirty thousand, two hundred thirty-four".
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