Base | Representation |
---|---|
bin | 111001010110… |
… | …1100001100110 |
3 | 2002120202111112 |
4 | 1302231201212 |
5 | 30144232021 |
6 | 2552305022 |
7 | 513412136 |
oct | 162554146 |
9 | 62522445 |
10 | 30070886 |
11 | 15a7977a |
12 | a0a2172 |
13 | 62cb331 |
14 | 3dcaac6 |
15 | 298ed5b |
hex | 1cad866 |
30070886 has 4 divisors (see below), whose sum is σ = 45106332. Its totient is φ = 15035442.
The previous prime is 30070871. The next prime is 30070891. The reversal of 30070886 is 68807003.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 68807003 = 1753 ⋅39251.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
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 as a sum of consecutive naturals, namely, 7517720 + ... + 7517723.
It is an arithmetic number, because the mean of its divisors is an integer number (11276583).
Almost surely, 230070886 is an apocalyptic number.
30070886 is a deficient number, since it is larger than the sum of its proper divisors (15035446).
30070886 is a wasteful number, since it uses less digits than its factorization.
30070886 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15035445.
The product of its (nonzero) digits is 8064, while the sum is 32.
The square root of 30070886 is about 5483.6927339157. The cubic root of 30070886 is about 310.9677906284.
Adding to 30070886 its reverse (68807003), we get a palindrome (98877889).
The spelling of 30070886 in words is "thirty million, seventy thousand, eight hundred eighty-six".
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