81989714 is an even 8-digits composite number following 81989713
and preceding 81989715 . In scientific notation, it is written as 8.1989714 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 40122580 positive integers (up to 81989714) that are relatively prime to 81989714.
81989714 has 8 divisors, whose sum is 125601408
The reverse of 81989714 is 41798918
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighty-one million nine hundred eighty-nine thousand seven hundred fourteen
Scientific notation
8.1989714 × 10^7
Engineering notation
8.1989714 × 10^6
Prime Factorization
2 × 47 × 872231
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81989714
Product of the distinct prime numbers
The prime factorization of 81989714 is 2 × 47 × 872231.
Since it has a total of 3 prime factors.
1 , 7 , 44 , 84 , 520 , 600 , 5830 , 9482 , 11958 , 63578 , 578382 , 682878 , 8041132 , 7875410 , 98532333 , 6068292 , 38381234 , 512623011 , 491429893 , 3880794973
n×2
163979428
n×3
245969142
n×4
327958856
n×5
409948570
n÷2
40994857
n÷3
27329904.666667
n÷3
20497428.5
n÷5
16397942.8
n2
6722313201801796
n3
5.5116053683415E+23
n4
4.5189494783119E+31
n5
3.7050737530724E+39
2 √n
9054.8171709869
3 √n
434.42998223328
4 √n
95.156803072544
5 √n
38.260608631725
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81989713
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81989714 can be divided by 8 positive divisors.
The sum of these divisors (counting 81989714) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000110001000001010010
3
Ternary
12201021111202002
4
Quaternary
10320301001102
5
Quinary
131442132324
6
Senary
12045154002
8
Octal
470610122
10
Decimal
81989714
12
Duodecimal
2355b902
16
Hexadecimal
4e31052
20
Vigesimal
15c8e5e
36
Base36
1ctbo2
md5
f660cf520bb1fe9f912d6d9558e07d6b
sha1
fb946456c6ef4cb068fd590d3b53696589d6a11e
sha256
fff86f2b6f69da8f98128addfb2063d6178b9b3070e5180b819420c91c5be0a7
sha512
d0aa2a07f039907a41c30114cb6a3ce7dbfd10b7e9cf7ecbe637a17b7aeda55ec33f8becb287c213eba6cee15d2e2454e2b3ea026a39c2bd644b94b74257c750
ripemd-160
68503a4bba6bca52d06b57f40cba8c5befba8abb
Diameter
163979428
Circumference
515156566.34466
Area
2.111876976991E+16
Volume
2.3086958579557E+24
Surface area
8.4475079079641E+16
Circumference
515156566.34466
Perimeter
327958856
Area
6722313201801796
Diagonal
115950965.51389
Surface area
40333879210810776
Volume
5.5116053683415E+23
Space diagonal
142010350.34604
Perimeter
245969142
Area
2.9108470024779E+15
Altitude
71005175.173021
Surface area
2.9108470024779E+15
Volume
6.4954892186308E+22
Height
38650321.837964