Base | Representation |
---|---|
bin | 11011111111110011… |
… | …001001001010111101 |
3 | 2212121000211101101112 |
4 | 123333303021022331 |
5 | 443031204311030 |
6 | 21450544051405 |
7 | 2112643455554 |
oct | 337763111275 |
9 | 85530741345 |
10 | 30061400765 |
11 | 11826971370 |
12 | 59ab603b65 |
13 | 2ab1012806 |
14 | 165266cd9b |
15 | bae206a95 |
hex | 6ffcc92bd |
30061400765 has 16 divisors (see below), whose sum is σ = 39360090240. Its totient is φ = 21858957120.
The previous prime is 30061400717. The next prime is 30061400801. The reversal of 30061400765 is 56700416003.
It is not a de Polignac number, because 30061400765 - 210 = 30061399741 is a prime.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 284891 + ... + 375879.
It is an arithmetic number, because the mean of its divisors is an integer number (2460005640).
Almost surely, 230061400765 is an apocalyptic number.
It is an amenable number.
30061400765 is a deficient number, since it is larger than the sum of its proper divisors (9298689475).
30061400765 is a wasteful number, since it uses less digits than its factorization.
30061400765 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97012.
The product of its (nonzero) digits is 15120, while the sum is 32.
Adding to 30061400765 its reverse (56700416003), we get a palindrome (86761816768).
The spelling of 30061400765 in words is "thirty billion, sixty-one million, four hundred thousand, seven hundred sixty-five".
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