Base | Representation |
---|---|
bin | 11011001011011… |
… | …00011111111111 |
3 | 120212222212011222 |
4 | 31211230133333 |
5 | 431331013112 |
6 | 34342303555 |
7 | 5435562326 |
oct | 1545543777 |
9 | 525885158 |
10 | 227985407 |
11 | 1077678a1 |
12 | 64427bbb |
13 | 38305310 |
14 | 223c90bd |
15 | 15036372 |
hex | d96c7ff |
227985407 has 16 divisors (see below), whose sum is σ = 257402880. Its totient is φ = 200351712.
The previous prime is 227985397. The next prime is 227985409. The reversal of 227985407 is 704589722.
It is not a de Polignac number, because 227985407 - 26 = 227985343 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (227985409) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66194 + ... + 69552.
It is an arithmetic number, because the mean of its divisors is an integer number (16087680).
Almost surely, 2227985407 is an apocalyptic number.
227985407 is a deficient number, since it is larger than the sum of its proper divisors (29417473).
227985407 is a wasteful number, since it uses less digits than its factorization.
227985407 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3622.
The product of its (nonzero) digits is 282240, while the sum is 44.
The square root of 227985407 is about 15099.1856402920. The cubic root of 227985407 is about 610.8984404796.
The spelling of 227985407 in words is "two hundred twenty-seven million, nine hundred eighty-five thousand, four hundred seven".
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