Base | Representation |
---|---|
bin | 111001010001… |
… | …1100100011111 |
3 | 2002111200120100 |
4 | 1302203210133 |
5 | 30141430421 |
6 | 2551352143 |
7 | 513152226 |
oct | 162434437 |
9 | 62450510 |
10 | 30030111 |
11 | 15a51081 |
12 | a082653 |
13 | 62b58c7 |
14 | 3db9cbd |
15 | 2982c26 |
hex | 1ca391f |
30030111 has 24 divisors (see below), whose sum is σ = 45527040. Its totient is φ = 19038096.
The previous prime is 30030101. The next prime is 30030131. The reversal of 30030111 is 11103003.
It is not a de Polignac number, because 30030111 - 25 = 30030079 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a junction number, because it is equal to n+sod(n) for n = 30030093 and 30030102.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30030101) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49170 + ... + 49776.
It is an arithmetic number, because the mean of its divisors is an integer number (1896960).
Almost surely, 230030111 is an apocalyptic number.
30030111 is a deficient number, since it is larger than the sum of its proper divisors (15496929).
30030111 is a wasteful number, since it uses less digits than its factorization.
30030111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 875 (or 872 counting only the distinct ones).
The product of its (nonzero) digits is 9, while the sum is 9.
The square root of 30030111 is about 5479.9736313234. The cubic root of 30030111 is about 310.8271734762.
Adding to 30030111 its reverse (11103003), we get a palindrome (41133114).
The spelling of 30030111 in words is "thirty million, thirty thousand, one hundred eleven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •