Base | Representation |
---|---|
bin | 111001010101… |
… | …1101010011101 |
3 | 2002120101001010 |
4 | 1302223222131 |
5 | 30144011021 |
6 | 2552205433 |
7 | 513350664 |
oct | 162535235 |
9 | 62511033 |
10 | 30063261 |
11 | 15a73a78 |
12 | a099879 |
13 | 62c7a17 |
14 | 3dc7ddb |
15 | 298c976 |
hex | 1caba9d |
30063261 has 4 divisors (see below), whose sum is σ = 40084352. Its totient is φ = 20042172.
The previous prime is 30063251. The next prime is 30063287. The reversal of 30063261 is 16236003.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is not a de Polignac number, because 30063261 - 26 = 30063197 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30063251) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5010541 + ... + 5010546.
It is an arithmetic number, because the mean of its divisors is an integer number (10021088).
Almost surely, 230063261 is an apocalyptic number.
It is an amenable number.
30063261 is a deficient number, since it is larger than the sum of its proper divisors (10021091).
30063261 is a wasteful number, since it uses less digits than its factorization.
30063261 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10021090.
The product of its (nonzero) digits is 648, while the sum is 21.
The square root of 30063261 is about 5482.9974466527. The cubic root of 30063261 is about 310.9415046293.
Adding to 30063261 its reverse (16236003), we get a palindrome (46299264).
The spelling of 30063261 in words is "thirty million, sixty-three thousand, two hundred sixty-one".
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