Base | Representation |
---|---|
bin | 111001101110… |
… | …1010010110001 |
3 | 2002221200220011 |
4 | 1303131102301 |
5 | 30222012140 |
6 | 3000414521 |
7 | 515155441 |
oct | 163352261 |
9 | 62850804 |
10 | 30266545 |
11 | 160a2781 |
12 | a177441 |
13 | 63693ca |
14 | 403c121 |
15 | 29cccea |
hex | 1cdd4b1 |
30266545 has 8 divisors (see below), whose sum is σ = 38456424. Its totient is φ = 22788864.
The previous prime is 30266527. The next prime is 30266549. The reversal of 30266545 is 54566203.
It can be written as a sum of positive squares in 4 ways, for example, as 7997584 + 22268961 = 2828^2 + 4719^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30266545 - 213 = 30258353 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30266549) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177954 + ... + 178123.
It is an arithmetic number, because the mean of its divisors is an integer number (4807053).
Almost surely, 230266545 is an apocalyptic number.
It is an amenable number.
30266545 is a deficient number, since it is larger than the sum of its proper divisors (8189879).
30266545 is a wasteful number, since it uses less digits than its factorization.
30266545 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 356099.
The product of its (nonzero) digits is 21600, while the sum is 31.
The square root of 30266545 is about 5501.5038853026. The cubic root of 30266545 is about 311.6407800030.
The spelling of 30266545 in words is "thirty million, two hundred sixty-six thousand, five hundred forty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •