Base | Representation |
---|---|
bin | 111001010110… |
… | …0010101011111 |
3 | 2002120111211010 |
4 | 1302230111133 |
5 | 30144103030 |
6 | 2552230303 |
7 | 513362010 |
oct | 162542537 |
9 | 62514733 |
10 | 30066015 |
11 | 15a76051 |
12 | a09b393 |
13 | 62c9055 |
14 | 3dc9007 |
15 | 298d6b0 |
hex | 1cac55f |
30066015 has 64 divisors (see below), whose sum is σ = 57784320. Its totient is φ = 13063680.
The previous prime is 30066007. The next prime is 30066017. The reversal of 30066015 is 51066003.
It is not a de Polignac number, because 30066015 - 23 = 30066007 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 30065982 and 30066000.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30066017) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 275781 + ... + 275889.
It is an arithmetic number, because the mean of its divisors is an integer number (902880).
Almost surely, 230066015 is an apocalyptic number.
30066015 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
30066015 is a deficient number, since it is larger than the sum of its proper divisors (27718305).
30066015 is a wasteful number, since it uses less digits than its factorization.
30066015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 232.
The product of its (nonzero) digits is 540, while the sum is 21.
The square root of 30066015 is about 5483.2485809053. The cubic root of 30066015 is about 310.9509991277.
The spelling of 30066015 in words is "thirty million, sixty-six thousand, fifteen".
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