Base | Representation |
---|---|
bin | 111001010110… |
… | …1000100001101 |
3 | 2002120122220212 |
4 | 1302231010031 |
5 | 30144202010 |
6 | 2552252205 |
7 | 513403511 |
oct | 162550415 |
9 | 62518825 |
10 | 30069005 |
11 | 15a7831a |
12 | a0a1065 |
13 | 62ca515 |
14 | 3dca141 |
15 | 298e505 |
hex | 1cad10d |
30069005 has 12 divisors (see below), whose sum is σ = 38332020. Its totient is φ = 22639104.
The previous prime is 30068999. The next prime is 30069007. The reversal of 30069005 is 50096003.
It can be written as a sum of positive squares in 6 ways, for example, as 268324 + 29800681 = 518^2 + 5459^2 .
It is not a de Polignac number, because 30069005 - 216 = 30003469 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30069007) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8960 + ... + 11849.
It is an arithmetic number, because the mean of its divisors is an integer number (3194335).
Almost surely, 230069005 is an apocalyptic number.
It is an amenable number.
30069005 is a deficient number, since it is larger than the sum of its proper divisors (8263015).
30069005 is a wasteful number, since it uses less digits than its factorization.
30069005 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20848 (or 20831 counting only the distinct ones).
The product of its (nonzero) digits is 810, while the sum is 23.
The square root of 30069005 is about 5483.5212227181. The cubic root of 30069005 is about 310.9613065869.
The spelling of 30069005 in words is "thirty million, sixty-nine thousand, five".
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