Base | Representation |
---|---|
bin | 11100101101101011… |
… | …111100010110101010 |
3 | 2221120200110112211220 |
4 | 130231223330112222 |
5 | 1001120300441234 |
6 | 22055205002510 |
7 | 2141012300352 |
oct | 345553742652 |
9 | 87520415756 |
10 | 30831265194 |
11 | 12091499964 |
12 | 5b853b3436 |
13 | 2ba4673ab2 |
14 | 16c69d1b62 |
15 | c06ac9a49 |
hex | 72dafc5aa |
30831265194 has 8 divisors (see below), whose sum is σ = 61662530400. Its totient is φ = 10277088396.
The previous prime is 30831265187. The next prime is 30831265247. The reversal of 30831265194 is 49156213803.
It is a sphenic number, since it is the product of 3 distinct primes.
30831265194 is an admirable number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2569272094 + ... + 2569272105.
It is an arithmetic number, because the mean of its divisors is an integer number (7707816300).
Almost surely, 230831265194 is an apocalyptic number.
30831265194 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30831265194 is a wasteful number, since it uses less digits than its factorization.
30831265194 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5138544204.
The product of its (nonzero) digits is 155520, while the sum is 42.
Adding to 30831265194 its reverse (49156213803), we get a palindrome (79987478997).
The spelling of 30831265194 in words is "thirty billion, eight hundred thirty-one million, two hundred sixty-five thousand, one hundred ninety-four".
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