Base | Representation |
---|---|
bin | 11011111111001100… |
… | …010001101101101111 |
3 | 2212120022122202020011 |
4 | 123333030101231233 |
5 | 443021102242033 |
6 | 21445541434051 |
7 | 2112461042251 |
oct | 337714215557 |
9 | 85508582204 |
10 | 30051212143 |
11 | 11821142517 |
12 | 59a810b927 |
13 | 2aabb86144 |
14 | 1651179cd1 |
15 | bad392ccd |
hex | 6ff311b6f |
30051212143 has 8 divisors (see below), whose sum is σ = 31368636000. Its totient is φ = 28734692448.
The previous prime is 30051212131. The next prime is 30051212173. The reversal of 30051212143 is 34121215003.
It is a happy number.
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 30051212143 - 25 = 30051212111 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30051212173) 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 7 ways as a sum of consecutive naturals, for example, 157668 + ... + 291481.
It is an arithmetic number, because the mean of its divisors is an integer number (3921079500).
Almost surely, 230051212143 is an apocalyptic number.
30051212143 is a deficient number, since it is larger than the sum of its proper divisors (1317423857).
30051212143 is a wasteful number, since it uses less digits than its factorization.
30051212143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 452081.
The product of its (nonzero) digits is 720, while the sum is 22.
Adding to 30051212143 its reverse (34121215003), we get a palindrome (64172427146).
The spelling of 30051212143 in words is "thirty billion, fifty-one million, two hundred twelve thousand, one hundred forty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •