81970166 is an even 8-digits composite number following 81970165
and preceding 81970167 . In scientific notation, it is written as 8.1970166 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 40889560 positive integers (up to 81970166) that are relatively prime to 81970166.
81970166 has 8 divisors, whose sum is 123241824
The reverse of 81970166 is 66107918
Previous prime number is 431
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighty-one million nine hundred seventy thousand one hundred sixty-six
Scientific notation
8.1970166 × 10^7
Engineering notation
8.1970166 × 10^6
Prime Factorization
2 × 431 × 95093
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81970166
Product of the distinct prime numbers
The prime factorization of 81970166 is 2 × 431 × 95093.
Since it has a total of 3 prime factors.
6 , 5 , 41 , 100 , 419 , 912 , 4451 , 8115 , 59224 , 72717 , 357654 , 772912 , 1568777 , 3028278 , 38570412 , 56996124 , 659080261 , 892888770 , 9397880926 , 4171052249
n×2
163940332
n×3
245910498
n×4
327880664
n×5
409850830
n÷2
40985083
n÷3
27323388.666667
n÷3
20492541.5
n÷5
16394033.2
n2
6719108114067556
n3
5.5076640748206E+23
n4
4.5146413848528E+31
n5
3.7006590374686E+39
2 √n
9053.7376812011
3 √n
434.39545386838
4 √n
95.151130740528
5 √n
38.25878403769
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
-81970165
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 81970166 can be divided by 8 positive divisors.
The sum of these divisors (counting 81970166) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000101100001111110110
3
Ternary
12201020111221002
4
Quaternary
10320230033312
5
Quinary
131441021131
6
Senary
12044523302
8
Octal
470541766
10
Decimal
81970166
12
Duodecimal
23550532
16
Hexadecimal
4e2c3f6
20
Vigesimal
15c6586
36
Base36
1cswl2
md5
8f1d67c494b639015db1eac759ab110a
sha1
ce2da349f3f6298800e279c431ad7740d59eaabb
sha256
c84d44a1d694c8d388b2716dd8c36ee04eace711fbef4de65056b713956b4fa3
sha512
645e67b20b4d09c6e32116787c82ceaa77106faac714a9205fc2ed4fd34a7c364f397d72205b284873476d1d1daf9c4a25451beed8adf13992eb13053e84b698
ripemd-160
9495f499429c77f8a4e849d91b3de07e113c7f86
Diameter
163940332
Circumference
515033742.63827
Area
2.110870068983E+16
Volume
2.3070449327863E+24
Surface area
8.4434802759321E+16
Circumference
515033742.63827
Perimeter
327880664
Area
6719108114067556
Diagonal
115923320.46717
Surface area
40314648684405336
Volume
5.5076640748206E+23
Space diagonal
141976492.21685
Perimeter
245910498
Area
2.9094591587783E+15
Altitude
70988246.108427
Surface area
2.9094591587783E+15
Volume
6.490844359672E+22
Height
38641106.822391