Base | Representation |
---|---|
bin | 111010001100… |
… | …0110110010110 |
3 | 2010102002112000 |
4 | 1310120312112 |
5 | 30302313421 |
6 | 3005540130 |
7 | 520222566 |
oct | 164306626 |
9 | 63362460 |
10 | 30510486 |
11 | 16249a86 |
12 | a274646 |
13 | 6423456 |
14 | 40a2da6 |
15 | 2a2a226 |
hex | 1d18d96 |
30510486 has 32 divisors (see below), whose sum is σ = 68018400. Its totient is φ = 10137600.
The previous prime is 30510451. The next prime is 30510497. The reversal of 30510486 is 68401503.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20950 + ... + 22358.
It is an arithmetic number, because the mean of its divisors is an integer number (2125575).
Almost surely, 230510486 is an apocalyptic number.
30510486 is an abundant number, since it is smaller than the sum of its proper divisors (37507914).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30510486 is a wasteful number, since it uses less digits than its factorization.
30510486 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1821 (or 1815 counting only the distinct ones).
The product of its (nonzero) digits is 2880, while the sum is 27.
The square root of 30510486 is about 5523.6297848426. The cubic root of 30510486 is about 312.4757903378.
Adding to 30510486 its reverse (68401503), we get a palindrome (98911989).
The spelling of 30510486 in words is "thirty million, five hundred ten thousand, four hundred eighty-six".
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