Base | Representation |
---|---|
bin | 111001111000… |
… | …1010000101010 |
3 | 2010002212002020 |
4 | 1303301100222 |
5 | 30232121310 |
6 | 3002245310 |
7 | 515646045 |
oct | 163612052 |
9 | 63085066 |
10 | 30348330 |
11 | 16149171 |
12 | a1b6836 |
13 | 63976bc |
14 | 405dc5c |
15 | 29e7170 |
hex | 1cf142a |
30348330 has 32 divisors (see below), whose sum is σ = 74214144. Its totient is φ = 7939776.
The previous prime is 30348319. The next prime is 30348337. The reversal of 30348330 is 3384303.
It is a super-2 number, since 2×303483302 = 1842042267577800, which contains 22 as substring.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 30348330.
It is not an unprimeable number, because it can be changed into a prime (30348337) 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, 7954 + ... + 11133.
It is an arithmetic number, because the mean of its divisors is an integer number (2319192).
Almost surely, 230348330 is an apocalyptic number.
30348330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
30348330 is an abundant number, since it is smaller than the sum of its proper divisors (43865814).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30348330 is a wasteful number, since it uses less digits than its factorization.
30348330 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19150.
The product of its (nonzero) digits is 2592, while the sum is 24.
The square root of 30348330 is about 5508.9318383875. The cubic root of 30348330 is about 311.9212284703.
The spelling of 30348330 in words is "thirty million, three hundred forty-eight thousand, three hundred thirty".
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