Base | Representation |
---|---|
bin | 11000011101101… |
… | …01000100011111 |
3 | 112022010221122220 |
4 | 30032311010133 |
5 | 410013321413 |
6 | 32210240423 |
7 | 5041201332 |
oct | 1416650437 |
9 | 468127586 |
10 | 205213983 |
11 | a5924337 |
12 | 58886113 |
13 | 336915c0 |
14 | 1d37c619 |
15 | 13039223 |
hex | c3b511f |
205213983 has 16 divisors (see below), whose sum is σ = 296626176. Its totient is φ = 125445600.
The previous prime is 205213963. The next prime is 205213993. The reversal of 205213983 is 389312502.
It is not a de Polignac number, because 205213983 - 224 = 188436767 is a prime.
It is a super-2 number, since 2×2052139832 = 84225557637448578, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (205213963) 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, 11535 + ... + 23312.
It is an arithmetic number, because the mean of its divisors is an integer number (18539136).
Almost surely, 2205213983 is an apocalyptic number.
205213983 is a deficient number, since it is larger than the sum of its proper divisors (91412193).
205213983 is a wasteful number, since it uses less digits than its factorization.
205213983 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35014.
The product of its (nonzero) digits is 12960, while the sum is 33.
The square root of 205213983 is about 14325.2917247782. The cubic root of 205213983 is about 589.8419408068.
The spelling of 205213983 in words is "two hundred five million, two hundred thirteen thousand, nine hundred eighty-three".
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