Base | Representation |
---|---|
bin | 1001111110111… |
… | …11000000111001 |
3 | 12211120222201202 |
4 | 10333133000321 |
5 | 132420012334 |
6 | 12151023545 |
7 | 2034604631 |
oct | 477370071 |
9 | 184528652 |
10 | 83750969 |
11 | 43303385 |
12 | 2406abb5 |
13 | 144747b3 |
14 | b1a16c1 |
15 | 754517e |
hex | 4fdf039 |
83750969 has 4 divisors (see below), whose sum is σ = 84120144. Its totient is φ = 83381796.
The previous prime is 83750957. The next prime is 83750983. The reversal of 83750969 is 96905738.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 83750969 - 220 = 82702393 is a prime.
It is a super-2 number, since 2×837509692 = 14028449616877922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (83750939) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184247 + ... + 184700.
It is an arithmetic number, because the mean of its divisors is an integer number (21030036).
Almost surely, 283750969 is an apocalyptic number.
It is an amenable number.
83750969 is a deficient number, since it is larger than the sum of its proper divisors (369175).
83750969 is a wasteful number, since it uses less digits than its factorization.
83750969 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 369174.
The product of its (nonzero) digits is 408240, while the sum is 47.
The square root of 83750969 is about 9151.5555508340. Note that the first 5 decimals coincide. The cubic root of 83750969 is about 437.5186935142.
The spelling of 83750969 in words is "eighty-three million, seven hundred fifty thousand, nine hundred sixty-nine".
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