Base | Representation |
---|---|
bin | 111001010110… |
… | …1100001001100 |
3 | 2002120202110120 |
4 | 1302231201030 |
5 | 30144231420 |
6 | 2552304540 |
7 | 513412101 |
oct | 162554114 |
9 | 62522416 |
10 | 30070860 |
11 | 15a79756 |
12 | a0a2150 |
13 | 62cb311 |
14 | 3dcaaa8 |
15 | 298ed40 |
hex | 1cad84c |
30070860 has 48 divisors (see below), whose sum is σ = 84714336. Its totient is φ = 7969792.
The previous prime is 30070823. The next prime is 30070861. The reversal of 30070860 is 6807003.
It is a super-2 number, since 2×300708602 = 1808513242279200, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 30070860.
It is not an unprimeable number, because it can be changed into a prime (30070861) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8932 + ... + 11828.
It is an arithmetic number, because the mean of its divisors is an integer number (1764882).
Almost surely, 230070860 is an apocalyptic number.
30070860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30070860 is an abundant number, since it is smaller than the sum of its proper divisors (54643476).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30070860 is a wasteful number, since it uses less digits than its factorization.
30070860 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3082 (or 3080 counting only the distinct ones).
The product of its (nonzero) digits is 1008, while the sum is 24.
The square root of 30070860 is about 5483.6903632499. The cubic root of 30070860 is about 310.9677010050.
Adding to 30070860 its reverse (6807003), we get a palindrome (36877863).
The spelling of 30070860 in words is "thirty million, seventy thousand, eight hundred sixty".
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