Base | Representation |
---|---|
bin | 110101000101… |
… | …0011111011100 |
3 | 1221100220220111 |
4 | 1222022133130 |
5 | 24111031421 |
6 | 2432255404 |
7 | 455360500 |
oct | 152123734 |
9 | 57326814 |
10 | 27830236 |
11 | 147892a5 |
12 | 93a1564 |
13 | 59c54c5 |
14 | 39a6300 |
15 | 269aee1 |
hex | 1a8a7dc |
27830236 has 18 divisors (see below), whose sum is σ = 56654808. Its totient is φ = 11927160.
The previous prime is 27830233. The next prime is 27830237. The reversal of 27830236 is 63203872.
It is a junction number, because it is equal to n+sod(n) for n = 27830198 and 27830207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (27830233) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70800 + ... + 71191.
Almost surely, 227830236 is an apocalyptic number.
It is an amenable number.
27830236 is an abundant number, since it is smaller than the sum of its proper divisors (28824572).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27830236 is a wasteful number, since it uses less digits than its factorization.
27830236 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142009 (or 142000 counting only the distinct ones).
The product of its (nonzero) digits is 12096, while the sum is 31.
The square root of 27830236 is about 5275.4370435064. The cubic root of 27830236 is about 303.0439580849.
The spelling of 27830236 in words is "twenty-seven million, eight hundred thirty thousand, two hundred thirty-six".
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