Base | Representation |
---|---|
bin | 111001110100… |
… | …1001000010110 |
3 | 2010001011101220 |
4 | 1303221020112 |
5 | 30230040110 |
6 | 3001431210 |
7 | 515450004 |
oct | 163511026 |
9 | 63034356 |
10 | 30315030 |
11 | 16126149 |
12 | a19b506 |
13 | 63854b5 |
14 | 4051a74 |
15 | 29dc370 |
hex | 1ce9216 |
30315030 has 16 divisors (see below), whose sum is σ = 72756144. Its totient is φ = 8084000.
The previous prime is 30315023. The next prime is 30315059. The reversal of 30315030 is 3051303.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505221 + ... + 505280.
It is an arithmetic number, because the mean of its divisors is an integer number (4547259).
Almost surely, 230315030 is an apocalyptic number.
30315030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30315030 is an abundant number, since it is smaller than the sum of its proper divisors (42441114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30315030 is a wasteful number, since it uses less digits than its factorization.
30315030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1010511.
The product of its (nonzero) digits is 135, while the sum is 15.
The square root of 30315030 is about 5505.9086443565. The cubic root of 30315030 is about 311.8071005178.
Adding to 30315030 its reverse (3051303), we get a palindrome (33366333).
The spelling of 30315030 in words is "thirty million, three hundred fifteen thousand, thirty".
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