Base | Representation |
---|---|
bin | 111001111010… |
… | …0011011000111 |
3 | 2010010111212010 |
4 | 1303310123013 |
5 | 30233030122 |
6 | 3002425303 |
7 | 516031605 |
oct | 163643307 |
9 | 63114763 |
10 | 30361287 |
11 | 16157980 |
12 | a202233 |
13 | 63a0578 |
14 | 4064875 |
15 | 29eae0c |
hex | 1cf46c7 |
30361287 has 8 divisors (see below), whose sum is σ = 44161920. Its totient is φ = 18400760.
The previous prime is 30361249. The next prime is 30361301. The reversal of 30361287 is 78216303.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30361287 - 210 = 30360263 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30361217) 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, 459987 + ... + 460052.
It is an arithmetic number, because the mean of its divisors is an integer number (5520240).
Almost surely, 230361287 is an apocalyptic number.
30361287 is a deficient number, since it is larger than the sum of its proper divisors (13800633).
30361287 is a wasteful number, since it uses less digits than its factorization.
30361287 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 920053.
The product of its (nonzero) digits is 6048, while the sum is 30.
The square root of 30361287 is about 5510.1077121958. The cubic root of 30361287 is about 311.9656129919.
The spelling of 30361287 in words is "thirty million, three hundred sixty-one thousand, two hundred eighty-seven".
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