Base | Representation |
---|---|
bin | 111001110010… |
… | …1101111001011 |
3 | 2010000110100010 |
4 | 1303211233023 |
5 | 30224114011 |
6 | 3001243003 |
7 | 515361330 |
oct | 163455713 |
9 | 63013303 |
10 | 30301131 |
11 | 16116763 |
12 | a193463 |
13 | 637c083 |
14 | 404a987 |
15 | 29d81a6 |
hex | 1ce5bcb |
30301131 has 8 divisors (see below), whose sum is σ = 46173184. Its totient is φ = 17314920.
The previous prime is 30301127. The next prime is 30301147. The reversal of 30301131 is 13110303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30301131 - 22 = 30301127 is a prime.
It is a super-5 number, since 5×303011315 (a number of 39 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30301121) 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, 721435 + ... + 721476.
It is an arithmetic number, because the mean of its divisors is an integer number (5771648).
Almost surely, 230301131 is an apocalyptic number.
30301131 is a deficient number, since it is larger than the sum of its proper divisors (15872053).
30301131 is a wasteful number, since it uses less digits than its factorization.
30301131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1442921.
The product of its (nonzero) digits is 27, while the sum is 12.
The square root of 30301131 is about 5504.6463101638. The cubic root of 30301131 is about 311.7594402276.
Adding to 30301131 its reverse (13110303), we get a palindrome (43411434).
The spelling of 30301131 in words is "thirty million, three hundred one thousand, one hundred thirty-one".
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