Base | Representation |
---|---|
bin | 111001010100… |
… | …1101010001101 |
3 | 2002112221210010 |
4 | 1302221222031 |
5 | 30143230203 |
6 | 2552103433 |
7 | 513315030 |
oct | 162515215 |
9 | 62487703 |
10 | 30055053 |
11 | 15a68896 |
12 | a094b79 |
13 | 62c4072 |
14 | 3dc5017 |
15 | 298a303 |
hex | 1ca9a8d |
30055053 has 8 divisors (see below), whose sum is σ = 45798208. Its totient is φ = 17174304.
The previous prime is 30055037. The next prime is 30055057. The reversal of 30055053 is 35055003.
30055053 is nontrivially palindromic in base 4.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30055053 - 24 = 30055037 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1431193 = 30055053 / (3 + 0 + 0 + 5 + 5 + 0 + 5 + 3).
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30055057) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715576 + ... + 715617.
It is an arithmetic number, because the mean of its divisors is an integer number (5724776).
Almost surely, 230055053 is an apocalyptic number.
It is an amenable number.
30055053 is a deficient number, since it is larger than the sum of its proper divisors (15743155).
30055053 is a wasteful number, since it uses less digits than its factorization.
30055053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1431203.
The product of its (nonzero) digits is 1125, while the sum is 21.
The square root of 30055053 is about 5482.2488998585. The cubic root of 30055053 is about 310.9132038607.
The spelling of 30055053 in words is "thirty million, fifty-five thousand, fifty-three".
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