Base | Representation |
---|---|
bin | 111001011110… |
… | …1001110010101 |
3 | 2002201000201010 |
4 | 1302331032111 |
5 | 30203311224 |
6 | 2553522433 |
7 | 514100460 |
oct | 162751625 |
9 | 62630633 |
10 | 30135189 |
11 | 16013017 |
12 | a113419 |
13 | 6321696 |
14 | 40062d7 |
15 | 29a3e29 |
hex | 1cbd395 |
30135189 has 8 divisors (see below), whose sum is σ = 45920320. Its totient is φ = 17220096.
The previous prime is 30135181. The next prime is 30135191. The reversal of 30135189 is 98153103.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30135189 - 23 = 30135181 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 (30135181) 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, 717484 + ... + 717525.
It is an arithmetic number, because the mean of its divisors is an integer number (5740040).
Almost surely, 230135189 is an apocalyptic number.
It is an amenable number.
30135189 is a deficient number, since it is larger than the sum of its proper divisors (15785131).
30135189 is a wasteful number, since it uses less digits than its factorization.
30135189 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1435019.
The product of its (nonzero) digits is 3240, while the sum is 30.
The square root of 30135189 is about 5489.5527140196. The cubic root of 30135189 is about 311.1892886538.
The spelling of 30135189 in words is "thirty million, one hundred thirty-five thousand, one hundred eighty-nine".
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