81322013 is an odd 8-digits composite number following 81322012
and preceding 81322014 . In scientific notation, it is written as 8.1322013 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 81298368 positive integers (up to 81322013) that are relatively prime to 81322013.
81322013 has 4 divisors, whose sum is 81345660
The reverse of 81322013 is 31022318
Previous prime number is 4177
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
eighty-one million three hundred twenty-two thousand thirteen
Scientific notation
8.1322013 × 10^7
Engineering notation
8.1322013 × 10^6
Prime Factorization
4177 × 19469
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81322013
Product of the distinct prime numbers
The prime factorization of 81322013 is 4177 × 19469.
Since it has a total of 2 prime factors.
6 , 5 , 57 , 35 , 917 , 239 , 7654 , 4199 , 24661 , 87633 , 751960 , 131198 , 3489041 , 3509750 , 99108948 , 9245896 , 823372471 , 491259741 , 5168886407 , 1954555342
n×2
162644026
n×3
243966039
n×4
325288052
n×5
406610065
n÷2
40661006.5
n÷3
27107337.666667
n÷3
20330503.25
n÷5
16264402.6
n2
6613269798372169
n3
5.3780441251573E+23
n4
4.3735337426061E+31
n5
3.5566456787216E+39
2 √n
9017.8718664661
3 √n
433.24747483702
4 √n
94.962476096962
5 √n
38.198087927094
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
-81322012
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 81322013 can be divided by 4 positive divisors.
The sum of these divisors (counting 81322013) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110001110000000011101
3
Ternary
12200000120211102
4
Quaternary
10312032000131
5
Quinary
131304301023
6
Senary
12023002445
8
Octal
466160035
10
Decimal
81322013
12
Duodecimal
23299425
16
Hexadecimal
4d8e01d
20
Vigesimal
158550d
36
Base36
1cf0gt
md5
16d5e466a65907fca55aa3672db3a2e8
sha1
2ce5141d0e31f2b07c1a4c2caaf4ebef106b53cd
sha256
b1ad2b39ee19aa25b6a86f98dbfd6fbb66652f63eb241f91f81bf410e7c1ed90
sha512
28645bd451927484e41ad3fcec73bff2cf704a03b787c52b6707133a36ac09e1f685089df4810cb91900a504d2a8e998535e5dd23a67c791912fb8b766a1195f
ripemd-160
11134e52af7264c8d6416543e8221d16ad150df4
Diameter
162644026
Circumference
510961277.23187
Area
2.0776199814773E+16
Volume
2.2527498552368E+24
Surface area
8.3104799259093E+16
Circumference
510961277.23187
Perimeter
325288052
Area
6613269798372169
Diagonal
115006693.70408
Surface area
39679618790233014
Volume
5.3780441251573E+23
Space diagonal
140853858.28978
Perimeter
243966039
Area
2.8636298237353E+15
Altitude
70426929.144888
Surface area
2.8636298237353E+15
Volume
6.338085784032E+22
Height
38335564.568027