Base | Representation |
---|---|
bin | 111001110000… |
… | …1110001011111 |
3 | 2002222122001210 |
4 | 1303201301133 |
5 | 30223104040 |
6 | 3001035503 |
7 | 515263104 |
oct | 163416137 |
9 | 62878053 |
10 | 30284895 |
11 | 16105543 |
12 | a185b93 |
13 | 6374874 |
14 | 4044aab |
15 | 29d3480 |
hex | 1ce1c5f |
30284895 has 8 divisors (see below), whose sum is σ = 48455856. Its totient is φ = 16151936.
The previous prime is 30284867. The next prime is 30284897. The reversal of 30284895 is 59848203.
It is a happy number.
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 30284895 - 216 = 30219359 is a prime.
It is a super-2 number, since 2×302848952 = 1834349730322050, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30284897) 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, 1009482 + ... + 1009511.
It is an arithmetic number, because the mean of its divisors is an integer number (6056982).
Almost surely, 230284895 is an apocalyptic number.
30284895 is a deficient number, since it is larger than the sum of its proper divisors (18170961).
30284895 is a wasteful number, since it uses less digits than its factorization.
30284895 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2019001.
The product of its (nonzero) digits is 69120, while the sum is 39.
The square root of 30284895 is about 5503.1713584078. The cubic root of 30284895 is about 311.7037478003.
The spelling of 30284895 in words is "thirty million, two hundred eighty-four thousand, eight hundred ninety-five".
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