Base | Representation |
---|---|
bin | 1001111000001… |
… | …11011100001011 |
3 | 12202221010111102 |
4 | 10330013130023 |
5 | 132203233404 |
6 | 12120052015 |
7 | 2024236415 |
oct | 474073413 |
9 | 182833442 |
10 | 82867979 |
11 | 4285aa37 |
12 | 2390400b |
13 | 1422590c |
14 | b0119b5 |
15 | 741d71e |
hex | 4f0770b |
82867979 has 4 divisors (see below), whose sum is σ = 87742584. Its totient is φ = 77993376.
The previous prime is 82867943. The next prime is 82867997. The reversal of 82867979 is 97976828.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 82867979 - 224 = 66090763 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (82867879) 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, 2437277 + ... + 2437310.
It is an arithmetic number, because the mean of its divisors is an integer number (21935646).
Almost surely, 282867979 is an apocalyptic number.
82867979 is a deficient number, since it is larger than the sum of its proper divisors (4874605).
82867979 is a wasteful number, since it uses less digits than its factorization.
82867979 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4874604.
The product of its digits is 3048192, while the sum is 56.
The square root of 82867979 is about 9103.1851019300. The cubic root of 82867979 is about 435.9756653225.
The spelling of 82867979 in words is "eighty-two million, eight hundred sixty-seven thousand, nine hundred seventy-nine".
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