Base | Representation |
---|---|
bin | 10110101100101… |
… | …111011001001111 |
3 | 222112121000201200 |
4 | 112230233121033 |
5 | 1234442432330 |
6 | 101442240543 |
7 | 12302656266 |
oct | 2654573117 |
9 | 875530650 |
10 | 380827215 |
11 | 185a7013a |
12 | a7656153 |
13 | 60b8a862 |
14 | 388135dd |
15 | 23677a60 |
hex | 16b2f64f |
380827215 has 24 divisors (see below), whose sum is σ = 688802400. Its totient is φ = 194276544.
The previous prime is 380827211. The next prime is 380827247. The reversal of 380827215 is 512728083.
380827215 is a `hidden beast` number, since 380 + 8 + 272 + 1 + 5 = 666.
It is not a de Polignac number, because 380827215 - 22 = 380827211 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 380827215.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (380827211) 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, 182940 + ... + 185009.
It is an arithmetic number, because the mean of its divisors is an integer number (28700100).
Almost surely, 2380827215 is an apocalyptic number.
380827215 is a deficient number, since it is larger than the sum of its proper divisors (307975185).
380827215 is a wasteful number, since it uses less digits than its factorization.
380827215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 367983 (or 367980 counting only the distinct ones).
The product of its (nonzero) digits is 26880, while the sum is 36.
The square root of 380827215 is about 19514.7947721722. The cubic root of 380827215 is about 724.8408465552.
The spelling of 380827215 in words is "three hundred eighty million, eight hundred twenty-seven thousand, two hundred fifteen".
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