Base | Representation |
---|---|
bin | 11100101011111110… |
… | …011110011010000001 |
3 | 2221111200110121211201 |
4 | 130223332132122001 |
5 | 1001040424200313 |
6 | 22052301541201 |
7 | 2140213341451 |
oct | 345376363201 |
9 | 87450417751 |
10 | 30802568833 |
11 | 12077279963 |
12 | 5b77874801 |
13 | 2b9b7372ba |
14 | 16c2c81d61 |
15 | c0430c0dd |
hex | 72bf9e681 |
30802568833 has 4 divisors (see below), whose sum is σ = 30802929088. Its totient is φ = 30802208580.
The previous prime is 30802568807. The next prime is 30802568837. The reversal of 30802568833 is 33886520803.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is not a de Polignac number, because 30802568833 - 225 = 30769014401 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30802568837) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29260 + ... + 249922.
It is an arithmetic number, because the mean of its divisors is an integer number (7700732272).
Almost surely, 230802568833 is an apocalyptic number.
It is an amenable number.
30802568833 is a deficient number, since it is larger than the sum of its proper divisors (360255).
30802568833 is a wasteful number, since it uses less digits than its factorization.
30802568833 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 360254.
The product of its (nonzero) digits is 829440, while the sum is 46.
The spelling of 30802568833 in words is "thirty billion, eight hundred two million, five hundred sixty-eight thousand, eight hundred thirty-three".
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