Base | Representation |
---|---|
bin | 111001110001… |
… | …0000111000000 |
3 | 2002222200221210 |
4 | 1303202013000 |
5 | 30223130042 |
6 | 3001050120 |
7 | 515300112 |
oct | 163420700 |
9 | 62880853 |
10 | 30286272 |
11 | 16106585 |
12 | a186940 |
13 | 6375393 |
14 | 40453b2 |
15 | 29d3a9c |
hex | 1ce21c0 |
30286272 has 56 divisors (see below), whose sum is σ = 80595216. Its totient is φ = 10037248.
The previous prime is 30286271. The next prime is 30286273. The reversal of 30286272 is 27268203.
It is an interprime number because it is at equal distance from previous prime (30286271) and next prime (30286273).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30286271) 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, 44398 + ... + 45074.
Almost surely, 230286272 is an apocalyptic number.
30286272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30286272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40297608).
30286272 is an abundant number, since it is smaller than the sum of its proper divisors (50308944).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30286272 is a wasteful number, since it uses less digits than its factorization.
30286272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 925 (or 915 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 30.
The square root of 30286272 is about 5503.2964666643. The cubic root of 30286272 is about 311.7084719326.
The spelling of 30286272 in words is "thirty million, two hundred eighty-six thousand, two hundred seventy-two".
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