Base | Representation |
---|---|
bin | 111001110000… |
… | …1000101101010 |
3 | 2002222111012220 |
4 | 1303201011222 |
5 | 30223011330 |
6 | 3001014510 |
7 | 515251656 |
oct | 163410552 |
9 | 62874186 |
10 | 30282090 |
11 | 16103423 |
12 | a184436 |
13 | 63734c7 |
14 | 4043a66 |
15 | 29d2710 |
hex | 1ce116a |
30282090 has 32 divisors (see below), whose sum is σ = 75185280. Its totient is φ = 7796544.
The previous prime is 30282089. The next prime is 30282097. The reversal of 30282090 is 9028203.
It is a self number, because there is not a number n which added to its sum of digits gives 30282090.
It is not an unprimeable number, because it can be changed into a prime (30282097) 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, 16534 + ... + 18273.
It is an arithmetic number, because the mean of its divisors is an integer number (2349540).
Almost surely, 230282090 is an apocalyptic number.
30282090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30282090 is an abundant number, since it is smaller than the sum of its proper divisors (44903190).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30282090 is a wasteful number, since it uses less digits than its factorization.
30282090 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 34846.
The product of its (nonzero) digits is 864, while the sum is 24.
The square root of 30282090 is about 5502.9164994574. The cubic root of 30282090 is about 311.6941241248.
The spelling of 30282090 in words is "thirty million, two hundred eighty-two thousand, ninety".
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