Base | Representation |
---|---|
bin | 111010011110… |
… | …1011010101001 |
3 | 2010200200222101 |
4 | 1310331122221 |
5 | 30322112030 |
6 | 3013053401 |
7 | 521415346 |
oct | 164753251 |
9 | 63620871 |
10 | 30660265 |
11 | 16341569 |
12 | a327261 |
13 | 647668c |
14 | 41017cd |
15 | 2a597ca |
hex | 1d3d6a9 |
30660265 has 16 divisors (see below), whose sum is σ = 40652928. Its totient is φ = 22080256.
The previous prime is 30660263. The next prime is 30660269. The reversal of 30660265 is 56206603.
It is a cyclic number.
It is not a de Polignac number, because 30660265 - 21 = 30660263 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30660263) 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, 5887 + ... + 9796.
It is an arithmetic number, because the mean of its divisors is an integer number (2540808).
Almost surely, 230660265 is an apocalyptic number.
It is an amenable number.
30660265 is a deficient number, since it is larger than the sum of its proper divisors (9992663).
30660265 is a wasteful number, since it uses less digits than its factorization.
30660265 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15728.
The product of its (nonzero) digits is 6480, while the sum is 28.
The square root of 30660265 is about 5537.1712092006. The cubic root of 30660265 is about 312.9862807734.
Adding to 30660265 its reverse (56206603), we get a palindrome (86866868).
The spelling of 30660265 in words is "thirty million, six hundred sixty thousand, two hundred sixty-five".
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