81502013 is an odd 8-digits prime number following 81502012
and preceding 81502014 . In scientific notation, it is written as 8.1502013 × 10^7.
The sum of its digits is 20. It has a total of 1 prime factors and 2 positive divisors.
There are 81502012 positive integers (up to 81502013) that are relatively prime to 81502013.
81502013 has 2 divisors, whose sum is 81502014
The reverse of 81502013 is 31020518
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighty-one million five hundred two thousand thirteen
Scientific notation
8.1502013 × 10^7
Engineering notation
8.1502013 × 10^6
Prime Factorization
81502013
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
81502013
Product of the distinct prime numbers
The prime factorization of 81502013 is 81502013.
Since it has a total of 1 prime factors.
3 , 8 , 15 , 91 , 300 , 663 , 7868 , 7904 , 76701 , 4688 , 299243 , 199973 , 4325079 , 2635288 , 60409804 , 60585145 , 544926522 , 311332321 , 789506538 , 2101984520
n×2
163004026
n×3
244506039
n×4
326008052
n×5
407510065
n÷2
40751006.5
n÷3
27167337.666667
n÷3
20375503.25
n÷5
16300402.6
n2
6642578123052169
n3
5.4138348853851E+23
n4
4.4123844120851E+31
n5
3.5961821171476E+39
2 √n
9027.846531704
3 √n
433.56689256765
4 √n
95.014980564667
5 √n
38.214982679577
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
81502014
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
40751007
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
9027.8465870882
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999754607
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81502013 can be divided by 2 positive divisors.
The sum of these divisors (counting 81502013) is 81502014, the average is 40751007.
Base
System
Value
2
Binary
100110110111001111100111101
3
Ternary
12200100201202002
4
Quaternary
10312321330331
5
Quinary
131331031023
6
Senary
12030512045
8
Octal
466717475
10
Decimal
81502013
12
Duodecimal
23365625
16
Hexadecimal
4db9f3d
20
Vigesimal
1597f0d
36
Base36
1civct
md5
bf2b0ac22f88bbef3fe29bf5414cf6cd
sha1
6327167d6a99d342b2f11c52602c8aa2766b723e
sha256
699506f2d440919b4abd465e118ee6ff41ac169630055852a3f518f03977cc9a
sha512
8b6864197a70ae7889b170565c336408bc1e1f97d0127a4f70db96b5df548cd7af1b08a5edbf3c7449f672fe807e38342a63edc7ab67b597541fdecd8bb0c353
ripemd-160
45a42dcf2e704c02e74bc60b36386bbee5e41e58
Diameter
163004026
Circumference
512092250.58716
Area
2.0868274632277E+16
Volume
2.2677418538232E+24
Surface area
8.3473098529108E+16
Circumference
512092250.58716
Perimeter
326008052
Area
6642578123052169
Diagonal
115261252.14531
Surface area
39855468738313014
Volume
5.4138348853851E+23
Space diagonal
141165627.43514
Perimeter
244506039
Area
2.876320700593E+15
Altitude
70582813.71757
Surface area
2.876320700593E+15
Volume
6.3802655994669E+22
Height
38420417.381769