Base | Representation |
---|---|
bin | 11100100011110011… |
… | …010011111100110001 |
3 | 2221011010101222102222 |
4 | 130203303103330301 |
5 | 1000300322042224 |
6 | 22030522250425 |
7 | 2133626544344 |
oct | 344363237461 |
9 | 87133358388 |
10 | 30665424689 |
11 | 12006918499 |
12 | 5b39956a15 |
13 | 2b791b9b13 |
14 | 16ac98245b |
15 | be726bb5e |
hex | 723cd3f31 |
30665424689 has 8 divisors (see below), whose sum is σ = 30783255552. Its totient is φ = 30547791280.
The previous prime is 30665424611. The next prime is 30665424697. The reversal of 30665424689 is 98642456603.
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 30665424689 - 224 = 30648647473 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 30665424689.
It is not an unprimeable number, because it can be changed into a prime (30665423689) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265682 + ... + 363204.
It is an arithmetic number, because the mean of its divisors is an integer number (3847906944).
Almost surely, 230665424689 is an apocalyptic number.
It is an amenable number.
30665424689 is a deficient number, since it is larger than the sum of its proper divisors (117830863).
30665424689 is an equidigital number, since it uses as much as digits as its factorization.
30665424689 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 98727.
The product of its (nonzero) digits is 7464960, while the sum is 53.
The spelling of 30665424689 in words is "thirty billion, six hundred sixty-five million, four hundred twenty-four thousand, six hundred eighty-nine".
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