Base | Representation |
---|---|
bin | 111001010010… |
… | …0100001111111 |
3 | 2002111212222010 |
4 | 1302210201333 |
5 | 30142042142 |
6 | 2551422303 |
7 | 513166551 |
oct | 162444177 |
9 | 62455863 |
10 | 30034047 |
11 | 15a5402a |
12 | a084993 |
13 | 62b7634 |
14 | 3dbb4d1 |
15 | 2983e9c |
hex | 1ca487f |
30034047 has 8 divisors (see below), whose sum is σ = 41127856. Its totient is φ = 19481472.
The previous prime is 30034031. The next prime is 30034057. The reversal of 30034047 is 74043003.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30034047 - 24 = 30034031 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30034007) 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, 135178 + ... + 135399.
It is an arithmetic number, because the mean of its divisors is an integer number (5140982).
Almost surely, 230034047 is an apocalyptic number.
30034047 is a gapful number since it is divisible by the number (37) formed by its first and last digit.
30034047 is a deficient number, since it is larger than the sum of its proper divisors (11093809).
30034047 is a wasteful number, since it uses less digits than its factorization.
30034047 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 270617.
The product of its (nonzero) digits is 1008, while the sum is 21.
The square root of 30034047 is about 5480.3327453723. The cubic root of 30034047 is about 310.8407527612.
The spelling of 30034047 in words is "thirty million, thirty-four thousand, forty-seven".
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