81355963 is an odd 8-digits composite number following 81355962
and preceding 81355964 . In scientific notation, it is written as 8.1355963 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 74827200 positive integers (up to 81355963) that are relatively prime to 81355963.
81355963 has 8 divisors, whose sum is 87929856
The reverse of 81355963 is 36955318
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million three hundred fifty-five thousand nine hundred sixty-three
Scientific notation
8.1355963 × 10^7
Engineering notation
8.1355963 × 10^6
Prime Factorization
281 × 13 × 22271
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81355963
Product of the distinct prime numbers
The prime factorization of 81355963 is 281 × 13 × 22271.
Since it has a total of 3 prime factors.
2 , 8 , 2 , 62 , 609 , 864 , 6885 , 8979 , 52070 , 78217 , 405244 , 698568 , 4672735 , 2946986 , 28410341 , 26219616 , 66767180 , 678822018 , 6460327553 , 63627583
n×2
162711926
n×3
244067889
n×4
325423852
n×5
406779815
n÷2
40677981.5
n÷3
27118654.333333
n÷3
20338990.75
n÷5
16271192.6
n2
6618792715657369
n3
5.3847825527969E+23
n4
4.3808417012839E+31
n5
3.5640759535851E+39
2 √n
9019.7540432098
3 √n
433.30775661007
4 √n
94.972385687682
5 √n
38.201276752688
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
-81355962
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 81355963 can be divided by 8 positive divisors.
The sum of these divisors (counting 81355963) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110110010110010010111011
3
Ternary
12200002022101211
4
Quaternary
10312112102323
5
Quinary
131311342323
6
Senary
12023423551
8
Octal
466262273
10
Decimal
81355963
12
Duodecimal
232b4bb7
16
Hexadecimal
4d964bb
20
Vigesimal
15899i3
36
Base36
1cfqnv
md5
9994655073f2695b974c4e32d590b1f4
sha1
6290d90f17c10338b986912ea0cc44cae7a01639
sha256
a6d745969c148d626218b1fa5bc00d6248236b26b0c1190f24e88941160b07f0
sha512
41e7463fbb63df1812a3c52f27d0bf3103eba090c8fbf8c4f3bb6e23ec4da40ff9cc08399e415d7ca4a73658ac3004d3316a245ecf6a1b541a8fc21771465049
ripemd-160
c64072f451daf18ff17cf7bfe898cdef0df20c58
Diameter
162711926
Circumference
511174591.37305
Area
2.0793550571143E+16
Volume
2.255572441206E+24
Surface area
8.3174202284571E+16
Circumference
511174591.37305
Perimeter
325423852
Area
6618792715657369
Diagonal
115054706.25452
Surface area
39712756293944214
Volume
5.3847825527969E+23
Space diagonal
140912661.41469
Perimeter
244067889
Area
2.8660213170713E+15
Altitude
70456330.707347
Surface area
2.8660213170713E+15
Volume
6.3460270971628E+22
Height
38351568.751508