Base | Representation |
---|---|
bin | 111010000000… |
… | …1100011101101 |
3 | 2010020020122122 |
4 | 1310001203231 |
5 | 30241240320 |
6 | 3003522325 |
7 | 516344501 |
oct | 164014355 |
9 | 63206578 |
10 | 30415085 |
11 | 16194338 |
12 | a2293a5 |
13 | 63bbbbc |
14 | 407a301 |
15 | 2a0bd25 |
hex | 1d018ed |
30415085 has 16 divisors (see below), whose sum is σ = 38617344. Its totient is φ = 22948992.
The previous prime is 30415069. The next prime is 30415087. The reversal of 30415085 is 58051403.
It is a cyclic number.
It is not a de Polignac number, because 30415085 - 24 = 30415069 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 (30415087) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6584 + ... + 10206.
It is an arithmetic number, because the mean of its divisors is an integer number (2413584).
Almost surely, 230415085 is an apocalyptic number.
It is an amenable number.
30415085 is a deficient number, since it is larger than the sum of its proper divisors (8202259).
30415085 is a wasteful number, since it uses less digits than its factorization.
30415085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3724.
The product of its (nonzero) digits is 2400, while the sum is 26.
The square root of 30415085 is about 5514.9873073290. The cubic root of 30415085 is about 312.1497644188.
Adding to 30415085 its reverse (58051403), we get a palindrome (88466488).
The spelling of 30415085 in words is "thirty million, four hundred fifteen thousand, eighty-five".
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