Base | Representation |
---|---|
bin | 111001110010… |
… | …1000010000111 |
3 | 2010000022101022 |
4 | 1303211002013 |
5 | 30224020442 |
6 | 3001221355 |
7 | 515350040 |
oct | 163450207 |
9 | 63008338 |
10 | 30298247 |
11 | 16114581 |
12 | a19185b |
13 | 637a975 |
14 | 40498c7 |
15 | 29d73d2 |
hex | 1ce5087 |
30298247 has 8 divisors (see below), whose sum is σ = 34876800. Its totient is φ = 25782264.
The previous prime is 30298207. The next prime is 30298249. The reversal of 30298247 is 74289203.
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 30298247 - 214 = 30281863 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30298249) 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, 14597 + ... + 16542.
It is an arithmetic number, because the mean of its divisors is an integer number (4359600).
Almost surely, 230298247 is an apocalyptic number.
30298247 is a deficient number, since it is larger than the sum of its proper divisors (4578553).
30298247 is a wasteful number, since it uses less digits than its factorization.
30298247 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31285.
The product of its (nonzero) digits is 24192, while the sum is 35.
The square root of 30298247 is about 5504.3843434121. The cubic root of 30298247 is about 311.7495490373.
The spelling of 30298247 in words is "thirty million, two hundred ninety-eight thousand, two hundred forty-seven".
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