81350557 is an odd 8-digits composite number following 81350556
and preceding 81350558 . In scientific notation, it is written as 8.1350557 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 79971676 positive integers (up to 81350557) that are relatively prime to 81350557.
81350557 has 4 divisors, whose sum is 82729440
The reverse of 81350557 is 75505318
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million three hundred fifty thousand five hundred fifty-seven
Scientific notation
8.1350557 × 10^7
Engineering notation
8.1350557 × 10^6
Prime Factorization
59 × 1378823
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81350557
Product of the distinct prime numbers
The prime factorization of 81350557 is 59 × 1378823.
Since it has a total of 2 prime factors.
8 , 8 , 55 , 48 , 783 , 900 , 8677 , 3797 , 23508 , 82152 , 337879 , 973392 , 2712800 , 6051429 , 39344700 , 89444188 , 149525369 , 50316173 , 7646681488 , 9537746194
n×2
162701114
n×3
244051671
n×4
325402228
n×5
406752785
n÷2
40675278.5
n÷3
27116852.333333
n÷3
20337639.25
n÷5
16270111.4
n2
6617913124210249
n3
5.3837091883211E+23
n4
4.3796774119594E+31
n5
3.5628919694322E+39
2 √n
9019.4543626541
3 √n
433.29815881485
4 √n
94.970807949886
5 √n
38.200769053968
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
-81350556
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 81350557 can be divided by 4 positive divisors.
The sum of these divisors (counting 81350557) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010100111110011101
3
Ternary
12200002000222121
4
Quaternary
10312110332131
5
Quinary
131311204212
6
Senary
12023342541
8
Octal
466247635
10
Decimal
81350557
12
Duodecimal
232b1a51
16
Hexadecimal
4d94f9d
20
Vigesimal
1588g7h
36
Base36
1cfmhp
md5
efd705208b86de0861742ef9222e0f30
sha1
1dd56a6ca42f9d3161ce922d25478fb41dfbc4bf
sha256
a6ed711c3f2dba5b97b977b2281a970667da9fa3291d0f22be1a54d9f396626f
sha512
9266d29f1a8e32804626665222623b91b3a20b9e020accd1efdc9bb2e231d92812809b7645493b39585c23a09365486eebca20f6ae10231df84f1e2072e08109
ripemd-160
053732b3a0d68c5ee0fb6bf9e694a666148ae084
Diameter
162701114
Circumference
511140624.47328
Area
2.0790787253114E+16
Volume
2.2551228313458E+24
Surface area
8.3163149012458E+16
Circumference
511140624.47328
Perimeter
325402228
Area
6617913124210249
Diagonal
115047061.01601
Surface area
39707478745261494
Volume
5.3837091883211E+23
Space diagonal
140903297.94803
Perimeter
244051671
Area
2.8656404428023E+15
Altitude
70451648.974014
Surface area
2.8656404428023E+15
Volume
6.344762124997E+22
Height
38349020.338669