Base | Representation |
---|---|
bin | 11101001011011010… |
… | …111011100111110110 |
3 | 2222212110011010001102 |
4 | 131023122323213312 |
5 | 1003131002402410 |
6 | 22220505130102 |
7 | 2156250434141 |
oct | 351332734766 |
9 | 88773133042 |
10 | 31330122230 |
11 | 12318045600 |
12 | 60a4489932 |
13 | 2c53b18884 |
14 | 1732d6b058 |
15 | c357b92a5 |
hex | 74b6bb9f6 |
31330122230 has 48 divisors (see below), whose sum is σ = 62601012432. Its totient is φ = 11279928000.
The previous prime is 31330122209. The next prime is 31330122277. The reversal of 31330122230 is 3222103313.
It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 5972 + ... + 250391.
It is an arithmetic number, because the mean of its divisors is an integer number (1304187759).
Almost surely, 231330122230 is an apocalyptic number.
31330122230 is a deficient number, since it is larger than the sum of its proper divisors (31270890202).
31330122230 is a wasteful number, since it uses less digits than its factorization.
31330122230 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 256493 (or 256482 counting only the distinct ones).
The product of its (nonzero) digits is 648, while the sum is 20.
Adding to 31330122230 its reverse (3222103313), we get a palindrome (34552225543).
The spelling of 31330122230 in words is "thirty-one billion, three hundred thirty million, one hundred twenty-two thousand, two hundred thirty".
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