Base | Representation |
---|---|
bin | 111001101001… |
… | …1001011110101 |
3 | 2002212121002200 |
4 | 1303103023311 |
5 | 30214201031 |
6 | 2555455113 |
7 | 514623642 |
oct | 163231365 |
9 | 62777080 |
10 | 30225141 |
11 | 16074661 |
12 | a157499 |
13 | 63535cb |
14 | 402adc9 |
15 | 29c08e6 |
hex | 1cd32f5 |
30225141 has 6 divisors (see below), whose sum is σ = 43658550. Its totient is φ = 20150088.
The previous prime is 30225137. The next prime is 30225149. The reversal of 30225141 is 14152203.
It can be written as a sum of positive squares in only one way, i.e., 22524516 + 7700625 = 4746^2 + 2775^2 .
It is not a de Polignac number, because 30225141 - 22 = 30225137 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30225149) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1679166 + ... + 1679183.
It is an arithmetic number, because the mean of its divisors is an integer number (7276425).
Almost surely, 230225141 is an apocalyptic number.
It is an amenable number.
30225141 is a deficient number, since it is larger than the sum of its proper divisors (13433409).
30225141 is a wasteful number, since it uses less digits than its factorization.
30225141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3358355 (or 3358352 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 30225141 is about 5497.7396264283. The cubic root of 30225141 is about 311.4986091332.
Adding to 30225141 its reverse (14152203), we get a palindrome (44377344).
The spelling of 30225141 in words is "thirty million, two hundred twenty-five thousand, one hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •