Base | Representation |
---|---|
bin | 11100010011010000… |
… | …010011100111100001 |
3 | 2220102210000211120101 |
4 | 130103100103213201 |
5 | 444213240002313 |
6 | 21543204142401 |
7 | 2124016101340 |
oct | 342320234741 |
9 | 86383024511 |
10 | 30387812833 |
11 | 11984145604 |
12 | 5a80997a01 |
13 | 2b3382a451 |
14 | 1683b59b57 |
15 | bccbd15dd |
hex | 7134139e1 |
30387812833 has 8 divisors (see below), whose sum is σ = 34731795968. Its totient is φ = 26044546464.
The previous prime is 30387812809. The next prime is 30387812839. The reversal of 30387812833 is 33821878303.
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 30387812833 - 25 = 30387812801 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30387812839) 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, 85041 + ... + 260782.
It is an arithmetic number, because the mean of its divisors is an integer number (4341474496).
Almost surely, 230387812833 is an apocalyptic number.
It is an amenable number.
30387812833 is a deficient number, since it is larger than the sum of its proper divisors (4343983135).
30387812833 is a wasteful number, since it uses less digits than its factorization.
30387812833 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 358383.
The product of its (nonzero) digits is 580608, while the sum is 46.
The spelling of 30387812833 in words is "thirty billion, three hundred eighty-seven million, eight hundred twelve thousand, eight hundred thirty-three".
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