Base | Representation |
---|---|
bin | 1010000111100101… |
… | …1010010010111001 |
3 | 21000021222022210211 |
4 | 2201321122102321 |
5 | 21030320303224 |
6 | 1125305111121 |
7 | 124211110024 |
oct | 24171322271 |
9 | 7007868724 |
10 | 2716181689 |
11 | 1174239561 |
12 | 6397884a1 |
13 | 343960c00 |
14 | 1baa461bb |
15 | 10d6ce894 |
hex | a1e5a4b9 |
2716181689 has 27 divisors (see below), whose sum is σ = 3118918959. Its totient is φ = 2364027120.
The previous prime is 2716181669. The next prime is 2716181693. The reversal of 2716181689 is 9861816172.
The square root of 2716181689 is 52117.
It is a perfect power (a square), and thus also a powerful number.
2716181689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in only one way, i.e., 401802025 + 2314379664 = 20045^2 + 48108^2 .
It is not a de Polignac number, because 2716181689 - 29 = 2716181177 is a prime.
It is not an unprimeable number, because it can be changed into a prime (2716181659) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12872794 + ... + 12873004.
It is an arithmetic number, because the mean of its divisors is an integer number (115515517).
Almost surely, 22716181689 is an apocalyptic number.
2716181689 is the 52117-th square number.
2716181689 is the 26059-th centered octagonal number.
It is an amenable number.
2716181689 is a deficient number, since it is larger than the sum of its proper divisors (402737270).
2716181689 is an equidigital number, since it uses as much as digits as its factorization.
2716181689 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 486 (or 243 counting only the distinct ones).
The product of its digits is 290304, while the sum is 49.
The cubic root of 2716181689 is about 1395.2529166348.
Multiplying 2716181689 by its sum of digits (49), we get a square (133092902761 = 3648192).
The spelling of 2716181689 in words is "two billion, seven hundred sixteen million, one hundred eighty-one thousand, six hundred eighty-nine".
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