Base | Representation |
---|---|
bin | 111001010111… |
… | …0101100101001 |
3 | 2002121000002102 |
4 | 1302232230221 |
5 | 30144410224 |
6 | 2552343145 |
7 | 513432140 |
oct | 162565451 |
9 | 62530072 |
10 | 30075689 |
11 | 15a82346 |
12 | a0a4ab5 |
13 | 6300587 |
14 | 3dcc757 |
15 | 29914ae |
hex | 1caeb29 |
30075689 has 8 divisors (see below), whose sum is σ = 36181440. Its totient is φ = 24422256.
The previous prime is 30075677. The next prime is 30075707. The reversal of 30075689 is 98657003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30075689 - 220 = 29027113 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30075649) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112934 + ... + 113199.
It is an arithmetic number, because the mean of its divisors is an integer number (4522680).
Almost surely, 230075689 is an apocalyptic number.
It is an amenable number.
30075689 is a deficient number, since it is larger than the sum of its proper divisors (6105751).
30075689 is a wasteful number, since it uses less digits than its factorization.
30075689 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 226159.
The product of its (nonzero) digits is 45360, while the sum is 38.
The square root of 30075689 is about 5484.1306512518. The cubic root of 30075689 is about 310.9843459413.
The spelling of 30075689 in words is "thirty million, seventy-five thousand, six hundred eighty-nine".
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