Base | Representation |
---|---|
bin | 111001001110… |
… | …0110001000101 |
3 | 2002110021100021 |
4 | 1302130301011 |
5 | 30140032440 |
6 | 2551015141 |
7 | 513005050 |
oct | 162346105 |
9 | 62407307 |
10 | 30002245 |
11 | 15a32149 |
12 | a06a4b1 |
13 | 62a6010 |
14 | 3dada97 |
15 | 297984a |
hex | 1c9cc45 |
30002245 has 32 divisors (see below), whose sum is σ = 44658432. Its totient is φ = 18842112.
The previous prime is 30002239. The next prime is 30002249. The reversal of 30002245 is 54220003.
It is a cyclic number.
It is not a de Polignac number, because 30002245 - 27 = 30002117 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30002249) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105874 + ... + 106156.
It is an arithmetic number, because the mean of its divisors is an integer number (1395576).
Almost surely, 230002245 is an apocalyptic number.
30002245 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
It is an amenable number.
30002245 is a deficient number, since it is larger than the sum of its proper divisors (14656187).
30002245 is a wasteful number, since it uses less digits than its factorization.
30002245 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 541.
The product of its (nonzero) digits is 240, while the sum is 16.
The square root of 30002245 is about 5477.4305107413. The cubic root of 30002245 is about 310.7310012209.
Adding to 30002245 its reverse (54220003), we get a palindrome (84222248).
The spelling of 30002245 in words is "thirty million, two thousand, two hundred forty-five".
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