Base | Representation |
---|---|
bin | 111010010101… |
… | …1000010111010 |
3 | 2010112212202110 |
4 | 1310223002322 |
5 | 30312210033 |
6 | 3011313150 |
7 | 520653102 |
oct | 164530272 |
9 | 63485673 |
10 | 30585018 |
11 | 1629aa82 |
12 | a2ab7b6 |
13 | 644b359 |
14 | 40c2202 |
15 | 2a42363 |
hex | 1d2b0ba |
30585018 has 16 divisors (see below), whose sum is σ = 61510176. Its totient is φ = 10138320.
The previous prime is 30585001. The next prime is 30585019. The reversal of 30585018 is 81058503.
It is a happy number.
It is an alternating number because its digits alternate between odd and even.
It is not an unprimeable number, because it can be changed into a prime (30585019) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12996 + ... + 15167.
It is an arithmetic number, because the mean of its divisors is an integer number (3844386).
Almost surely, 230585018 is an apocalyptic number.
30585018 is an abundant number, since it is smaller than the sum of its proper divisors (30925158).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30585018 is a wasteful number, since it uses less digits than its factorization.
30585018 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28349.
The product of its (nonzero) digits is 4800, while the sum is 30.
The square root of 30585018 is about 5530.3723201969. The cubic root of 30585018 is about 312.7300254144.
The spelling of 30585018 in words is "thirty million, five hundred eighty-five thousand, eighteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •