81974564 is an even 8-digits composite number following 81974563
and preceding 81974565 . In scientific notation, it is written as 8.1974564 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 12 positive divisors.
There are 35131944 positive integers (up to 81974564) that are relatively prime to 81974564.
81974564 has 12 divisors, whose sum is 163949184
The reverse of 81974564 is 46547918
Previous prime number is 7
Is Prime? no Number parity even Number length 8 Sum of Digits 44 Digital Root 8
Name
eighty-one million nine hundred seventy-four thousand five hundred sixty-four
Scientific notation
8.1974564 × 10^7
Engineering notation
8.1974564 × 10^6
Prime Factorization
2 × 2 × 7 × 2927663
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
40987282 Product of the distinct prime numbers
The prime factorization of 81974564 is 2 × 2 × 7 × 2927663.
Since it has a total of 4 prime factors.
6 , 9 , 91 , 88 , 3 , 336 , 1272 , 1123 , 67242 , 44858 , 465410 , 155997 , 5706111 , 6741214 , 26241935 , 61139763 , 677726100 , 684191917 , 6748859684 , 7735011129
n×2
163949128
n×3
245923692
n×4
327898256
n×5
409872820
n÷2
40987282
n÷3
27324854.666667
n÷3
20493641
n÷5
16394912.8
n2
6719829142990096
n3
5.5085506415111E+23
n4
4.5156103710979E+31
n5
3.7016519136463E+39
2 √n9053.9805610571
3 √n434.40322269913
4 √n95.152407016623
5 √n38.259194573692
1 , 2 , 4 , 7 , 14 , 28 , 2927663 , 5855326 , 11710652 , 20493641 , 40987282 , 81974564
12 divisors
τ Total Divisors
12 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-81974563 Sum of the proper positive divisors of n
A Arithmetic Mean
0.083333333333333 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
12 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81974564 can be divided by 12 positive divisors.
The sum of these divisors (counting 81974564) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100111000101101010100100100
3
Ternary
12201020201221222
4
Quaternary
10320231110210
5
Quinary
131441141224
6
Senary
12044555512
8
Octal
470552444
10
Decimal
81974564
12
Duodecimal
23552b98
16
Hexadecimal
4e2d524
20
Vigesimal
15c6g84
36
Base36
1cszz8
md5
bfef280818e53ba532c971d01c7d1a83
sha1
021d8d22738c30b3b0abb7310a5b9a2f480e6041
sha256
a2d71a717b9a2387687e3490dc6d9e05a8e6fc329a7c11c5f1d5c5f70f647e65
sha512
f5dfaafe84c622f7411652ea22c587c00987fe5e42435278959a39ad9280d661c84a29c864109f72cbe91d91fb6f9b933055582ec0083c6de049bd0586b9e96f
ripemd-160
27cb2822d8d10b100d10b3f4537abb48a871b8fd
Diameter
163949128
Circumference
515061376.08725
Area
2.1110965868996E+16
Volume
2.3074162969731E+24
Surface area
8.4443863475985E+16
Circumference
515061376.08725
Perimeter
327898256
Area
6719829142990096
Diagonal
115929540.17842
Surface area
40318974857940576
Volume
5.5085506415111E+23
Space diagonal
141984109.77631
Perimeter
245923692
Area
2.9097713734602E+15
Altitude
70992054.888153
Surface area
2.9097713734602E+15
Volume
6.4918891885366E+22
Height
38643180.059474