Base | Representation |
---|---|
bin | 11011111101010010… |
… | …010100100011111111 |
3 | 2212111002111111202122 |
4 | 123331102110203333 |
5 | 442434411222424 |
6 | 21442440313155 |
7 | 2111622230450 |
oct | 337522244377 |
9 | 85432444678 |
10 | 30019242239 |
11 | 11805097008 |
12 | 59994727bb |
13 | 2aa537163c |
14 | 164ac17127 |
15 | baa67a45e |
hex | 6fd4948ff |
30019242239 has 8 divisors (see below), whose sum is σ = 34315100160. Its totient is φ = 25725233016.
The previous prime is 30019242229. The next prime is 30019242257. The reversal of 30019242239 is 93224291003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-30019242239 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30019242199 and 30019242208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30019242229) 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, 427199 + ... + 492480.
It is an arithmetic number, because the mean of its divisors is an integer number (4289387520).
Almost surely, 230019242239 is an apocalyptic number.
30019242239 is a deficient number, since it is larger than the sum of its proper divisors (4295857921).
30019242239 is an equidigital number, since it uses as much as digits as its factorization.
30019242239 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 924349.
The product of its (nonzero) digits is 23328, while the sum is 35.
The spelling of 30019242239 in words is "thirty billion, nineteen million, two hundred forty-two thousand, two hundred thirty-nine".
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