Base | Representation |
---|---|
bin | 111001010001… |
… | …1100110100101 |
3 | 2002111200202022 |
4 | 1302203212211 |
5 | 30141431440 |
6 | 2551352525 |
7 | 513152510 |
oct | 162434645 |
9 | 62450668 |
10 | 30030245 |
11 | 15a51193 |
12 | a082745 |
13 | 62b599b |
14 | 3db9d77 |
15 | 2982cb5 |
hex | 1ca39a5 |
30030245 has 32 divisors (see below), whose sum is σ = 44706816. Its totient is φ = 18892800.
The previous prime is 30030181. The next prime is 30030269. The reversal of 30030245 is 54203003.
It is not a de Polignac number, because 30030245 - 26 = 30030181 is a prime.
It is a super-2 number, since 2×300302452 = 1803631229520050, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a congruent number.
It is an unprimeable number.
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 31 ways as a sum of consecutive naturals, for example, 23780 + ... + 25010.
It is an arithmetic number, because the mean of its divisors is an integer number (1397088).
Almost surely, 230030245 is an apocalyptic number.
30030245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30030245 is a deficient number, since it is larger than the sum of its proper divisors (14676571).
30030245 is a wasteful number, since it uses less digits than its factorization.
30030245 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1301.
The product of its (nonzero) digits is 360, while the sum is 17.
The square root of 30030245 is about 5479.9858576460. The cubic root of 30030245 is about 310.8276357986.
Adding to 30030245 its reverse (54203003), we get a palindrome (84233248).
The spelling of 30030245 in words is "thirty million, thirty thousand, two hundred forty-five".
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