81222013 is an odd 8-digits prime number following 81222012
and preceding 81222014 . In scientific notation, it is written as 8.1222013 × 10^7.
The sum of its digits is 19. It has a total of 1 prime factors and 2 positive divisors.
There are 81222012 positive integers (up to 81222013) that are relatively prime to 81222013.
81222013 has 2 divisors, whose sum is 81222014
The reverse of 81222013 is 31022218
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
eighty-one million two hundred twenty-two thousand thirteen
Scientific notation
8.1222013 × 10^7
Engineering notation
8.1222013 × 10^6
Prime Factorization
81222013
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81222013
Product of the distinct prime numbers
The prime factorization of 81222013 is 81222013.
Since it has a total of 1 prime factors.
2 , 5 , 64 , 44 , 16 , 820 , 4159 , 7021 , 79664 , 57622 , 629515 , 95227 , 6783048 , 5495202 , 39477491 , 58873478 , 651745397 , 728493898 , 219856863 , 2043765075
n×2
162444026
n×3
243666039
n×4
324888052
n×5
406110065
n÷2
40611006.5
n÷3
27074004.333333
n÷3
20305503.25
n÷5
16244402.6
n2
6597015395772169
n3
5.3582287023661E+23
n4
4.3520612132055E+31
n5
3.5348317243577E+39
2 √n
9012.3256155112
3 √n
433.06981683872
4 √n
94.93326927643
5 √n
38.188689022922
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81222014
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40611007
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9012.3256709908
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999753761
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81222013 can be divided by 2 positive divisors.
The sum of these divisors (counting 81222013) is 81222014, the average is 40611007.
Base
System
Value
2
Binary
100110101110101100101111101
3
Ternary
12122211111122201
4
Quaternary
10311311211331
5
Quinary
131243101023
6
Senary
12020511501
8
Octal
465654575
10
Decimal
81222013
12
Duodecimal
2324b591
16
Hexadecimal
4d7597d
20
Vigesimal
157cf0d
36
Base36
1ccvb1
md5
d752e6c3fd5d2df46390b1daa7244d1d
sha1
ae78e5c2d2ec85b8d2d8f6dc11e11a78c1d0c2e7
sha256
2b100506ef589be1460573f2d969761bb6ebf71f8f3e5f2c5aab9b867c889df6
sha512
315a01da560ce193be3071b1499ca87436b6db6887b5a23bacafd0c9ad0102b2d0d6ec9722eee180f06dacfe8e5389b9c269ef5ec1ff336566a6ac96f3124fd4
ripemd-160
56c9d3fbe0b96d23beb78d8708d6f479d963f57e
Diameter
162444026
Circumference
510332958.70115
Area
2.0725135102977E+16
Volume
2.2444495903476E+24
Surface area
8.2900540411906E+16
Circumference
510332958.70115
Perimeter
324888052
Area
6597015395772169
Diagonal
114865272.34784
Surface area
39582092374633014
Volume
5.3582287023661E+23
Space diagonal
140680653.20902
Perimeter
243666039
Area
2.8565914609479E+15
Altitude
70340326.60451
Surface area
2.8565914609479E+15
Volume
6.3147330843191E+22
Height
38288424.115948