Base | Representation |
---|---|
bin | 111001110011… |
… | …0001100110101 |
3 | 2010000112221102 |
4 | 1303212030311 |
5 | 30224144104 |
6 | 3001255445 |
7 | 515400011 |
oct | 163461465 |
9 | 63015842 |
10 | 30303029 |
11 | 16118129 |
12 | a194585 |
13 | 637cbb3 |
14 | 404b541 |
15 | 29d8a1e |
hex | 1ce6335 |
30303029 has 4 divisors (see below), whose sum is σ = 31620576. Its totient is φ = 28985484.
The previous prime is 30303017. The next prime is 30303067. The reversal of 30303029 is 92030303.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92030303 = 613 ⋅150131.
It is a cyclic number.
It is not a de Polignac number, because 30303029 - 220 = 29254453 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30303029.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30303079) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658739 + ... + 658784.
It is an arithmetic number, because the mean of its divisors is an integer number (7905144).
Almost surely, 230303029 is an apocalyptic number.
It is an amenable number.
30303029 is a deficient number, since it is larger than the sum of its proper divisors (1317547).
30303029 is a wasteful number, since it uses less digits than its factorization.
30303029 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1317546.
The product of its (nonzero) digits is 486, while the sum is 20.
The square root of 30303029 is about 5504.8187072782. The cubic root of 30303029 is about 311.7659494132.
The spelling of 30303029 in words is "thirty million, three hundred three thousand, twenty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •