Base | Representation |
---|---|
bin | 111001111100… |
… | …1010110010110 |
3 | 2010011112112100 |
4 | 1303321112112 |
5 | 30234201322 |
6 | 3003102530 |
7 | 516144456 |
oct | 163712626 |
9 | 63145470 |
10 | 30381462 |
11 | 16171051 |
12 | a211a46 |
13 | 63a97c7 |
14 | 406bd66 |
15 | 2a01dac |
hex | 1cf9596 |
30381462 has 12 divisors (see below), whose sum is σ = 65826540. Its totient is φ = 10127148.
The previous prime is 30381443. The next prime is 30381469. The reversal of 30381462 is 26418303.
It is a happy number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30381469) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 843912 + ... + 843947.
It is an arithmetic number, because the mean of its divisors is an integer number (5485545).
Almost surely, 230381462 is an apocalyptic number.
30381462 is an abundant number, since it is smaller than the sum of its proper divisors (35445078).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30381462 is a wasteful number, since it uses less digits than its factorization.
30381462 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1687867 (or 1687864 counting only the distinct ones).
The product of its (nonzero) digits is 3456, while the sum is 27.
The square root of 30381462 is about 5511.9381346310. The cubic root of 30381462 is about 312.0346978176.
Adding to 30381462 its reverse (26418303), we get a palindrome (56799765).
The spelling of 30381462 in words is "thirty million, three hundred eighty-one thousand, four hundred sixty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.085 sec. • engine limits •