Base | Representation |
---|---|
bin | 11011111100111011… |
… | …010100010111001111 |
3 | 2212110200011010222120 |
4 | 123330323110113033 |
5 | 442431340241421 |
6 | 21442103144023 |
7 | 2111520044061 |
oct | 337473242717 |
9 | 85420133876 |
10 | 30013212111 |
11 | 11801748533 |
12 | 5997445013 |
13 | 2aa403ca0c |
14 | 164a0c7731 |
15 | ba9d888c6 |
hex | 6fced45cf |
30013212111 has 32 divisors (see below), whose sum is σ = 41561372160. Its totient is φ = 19252982784.
The previous prime is 30013212109. The next prime is 30013212133. The reversal of 30013212111 is 11121231003.
It is a happy number.
It is not a de Polignac number, because 30013212111 - 21 = 30013212109 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30013212101) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2428195 + ... + 2440523.
It is an arithmetic number, because the mean of its divisors is an integer number (1298792880).
Almost surely, 230013212111 is an apocalyptic number.
30013212111 is a deficient number, since it is larger than the sum of its proper divisors (11548160049).
30013212111 is a wasteful number, since it uses less digits than its factorization.
30013212111 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12655.
The product of its (nonzero) digits is 36, while the sum is 15.
Adding to 30013212111 its reverse (11121231003), we get a palindrome (41134443114).
The spelling of 30013212111 in words is "thirty billion, thirteen million, two hundred twelve thousand, one hundred eleven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.078 sec. • engine limits •