Base | Representation |
---|---|
bin | 111001111110… |
… | …0110001000100 |
3 | 2010012020201210 |
4 | 1303330301010 |
5 | 30240123320 |
6 | 3003251420 |
7 | 516233334 |
oct | 163746104 |
9 | 63166653 |
10 | 30395460 |
11 | 16180617 |
12 | a219b70 |
13 | 63b2ca4 |
14 | 40730c4 |
15 | 2a060e0 |
hex | 1cfcc44 |
30395460 has 24 divisors (see below), whose sum is σ = 85107456. Its totient is φ = 8105440.
The previous prime is 30395441. The next prime is 30395467. The reversal of 30395460 is 6459303.
It is a happy number.
It is a super-2 number, since 2×303954602 = 1847767977223200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (30).
It is not an unprimeable number, because it can be changed into a prime (30395467) by changing a digit.
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 in 7 ways as a sum of consecutive naturals, for example, 253236 + ... + 253355.
It is an arithmetic number, because the mean of its divisors is an integer number (3546144).
Almost surely, 230395460 is an apocalyptic number.
30395460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is an amenable number.
30395460 is an abundant number, since it is smaller than the sum of its proper divisors (54711996).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30395460 is a wasteful number, since it uses less digits than its factorization.
30395460 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 506603 (or 506601 counting only the distinct ones).
The product of its (nonzero) digits is 9720, while the sum is 30.
The square root of 30395460 is about 5513.2077776917. The cubic root of 30395460 is about 312.0826129032.
The spelling of 30395460 in words is "thirty million, three hundred ninety-five thousand, four hundred sixty".
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