Base | Representation |
---|---|
bin | 111010111111… |
… | …0100100100101 |
3 | 2011012021001200 |
4 | 1311332210211 |
5 | 30404132031 |
6 | 3022513113 |
7 | 523606410 |
oct | 165764445 |
9 | 64167050 |
10 | 30927141 |
11 | 16504023 |
12 | a435799 |
13 | 653acab |
14 | 4170b77 |
15 | 2aad8e6 |
hex | 1d7e925 |
30927141 has 24 divisors (see below), whose sum is σ = 51265344. Its totient is φ = 17599680.
The previous prime is 30927139. The next prime is 30927163. The reversal of 30927141 is 14172903.
It is not a de Polignac number, because 30927141 - 21 = 30927139 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30927121) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16830 + ... + 18576.
It is an arithmetic number, because the mean of its divisors is an integer number (2136056).
Almost surely, 230927141 is an apocalyptic number.
It is an amenable number.
30927141 is a deficient number, since it is larger than the sum of its proper divisors (20338203).
30927141 is a wasteful number, since it uses less digits than its factorization.
30927141 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2041 (or 2038 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 27.
The square root of 30927141 is about 5561.2175825083. The cubic root of 30927141 is about 313.8917669625.
The spelling of 30927141 in words is "thirty million, nine hundred twenty-seven thousand, one hundred forty-one".
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