Base | Representation |
---|---|
bin | 111001100101… |
… | …0111100110110 |
3 | 2002210212211112 |
4 | 1303022330312 |
5 | 30212111124 |
6 | 2555035022 |
7 | 514423421 |
oct | 163127466 |
9 | 62725745 |
10 | 30191414 |
11 | 16051290 |
12 | a13ba72 |
13 | 6341156 |
14 | 401c9b8 |
15 | 29b590e |
hex | 1ccaf36 |
30191414 has 16 divisors (see below), whose sum is σ = 49724496. Its totient is φ = 13634400.
The previous prime is 30191383. The next prime is 30191417. The reversal of 30191414 is 41419103.
It is a self number, because there is not a number n which added to its sum of digits gives 30191414.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30191417) 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, 917 + ... + 7824.
It is an arithmetic number, because the mean of its divisors is an integer number (3107781).
Almost surely, 230191414 is an apocalyptic number.
30191414 is a deficient number, since it is larger than the sum of its proper divisors (19533082).
30191414 is a wasteful number, since it uses less digits than its factorization.
30191414 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8911.
The product of its (nonzero) digits is 432, while the sum is 23.
The square root of 30191414 is about 5494.6714187474. The cubic root of 30191414 is about 311.3827031537.
The spelling of 30191414 in words is "thirty million, one hundred ninety-one thousand, four hundred fourteen".
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