81619162 is an even 8-digits composite number following 81619161
and preceding 81619163 . In scientific notation, it is written as 8.1619162 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 40809580 positive integers (up to 81619162) that are relatively prime to 81619162.
81619162 has 4 divisors, whose sum is 122428746
The reverse of 81619162 is 26191618
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million six hundred nineteen thousand one hundred sixty-two
Scientific notation
8.1619162 × 10^7
Engineering notation
8.1619162 × 10^6
Prime Factorization
2 × 40809581
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81619162
Product of the distinct prime numbers
The prime factorization of 81619162 is 2 × 40809581.
Since it has a total of 2 prime factors.
4 , 4 , 74 , 29 , 361 , 69 , 625 , 8598 , 83339 , 31485 , 745376 , 231849 , 8153434 , 3709090 , 9511914 , 84112427 , 108145602 , 274139872 , 9433170270 , 9129669293
n×2
163238324
n×3
244857486
n×4
326476648
n×5
408095810
n÷2
40809581
n÷3
27206387.333333
n÷3
20404790.5
n÷5
16323832.4
n2
6661687605582244
n3
5.4372135987341E+23
n4
4.4378081754368E+31
n5
3.622101843959E+39
2 √n
9034.3324047768
3 √n
433.77452593257
4 √n
95.049105228702
5 √n
38.225962224977
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81619161
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81619162 can be divided by 4 positive divisors.
The sum of these divisors (counting 81619162) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111010110100011011010
3
Ternary
12200120200102221
4
Quaternary
10313112203122
5
Quinary
131343303122
6
Senary
12033214254
8
Octal
467264332
10
Decimal
81619162
12
Duodecimal
2340138a
16
Hexadecimal
4dd68da
20
Vigesimal
15a27i2
36
Base36
1cldqy
md5
6f4480c0d765779d0fbc1a093174b823
sha1
7fcbfb32f63ba2e6e6d443a29793770f50bfeb20
sha256
77c8cbbd45a771975d4f89b32e02731cb4881e534f10f090a917878f6dc0c27e
sha512
b183189fff5b038aea7e80bda8be6e4ac5a660f3fa26c07085510ca34c410b302f90054f1b7a562c25c3cc17019131415b645bced122d5f399121612e906e132
ripemd-160
e10c55f536504c82319350a44c4c3a0cf8276c51
Diameter
163238324
Circumference
512828319.46271
Area
2.0928308842207E+16
Volume
2.2775347063709E+24
Surface area
8.3713235368829E+16
Circumference
512828319.46271
Perimeter
326476648
Area
6661687605582244
Diagonal
115426925.84993
Surface area
39970125633493464
Volume
5.4372135987341E+23
Space diagonal
141368535.4552
Perimeter
244857486
Area
2.8845953492551E+15
Altitude
70684267.727598
Surface area
2.8845953492551E+15
Volume
6.4078176773743E+22
Height
38475641.949976