81358051 is an odd 8-digits composite number following 81358050
and preceding 81358052 . In scientific notation, it is written as 8.1358051 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 81197704 positive integers (up to 81358051) that are relatively prime to 81358051.
81358051 has 4 divisors, whose sum is 81518400
The reverse of 81358051 is 15085318
Previous prime number is 509
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million three hundred fifty-eight thousand fifty-one
Scientific notation
8.1358051 × 10^7
Engineering notation
8.1358051 × 10^6
Prime Factorization
509 × 159839
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81358051
Product of the distinct prime numbers
The prime factorization of 81358051 is 509 × 159839.
Since it has a total of 2 prime factors.
10 , 4 , 61 , 88 , 250 , 144 , 2971 , 3148 , 73255 , 55847 , 404411 , 568606 , 2505364 , 6920836 , 61179432 , 90669962 , 304916979 , 359437239 , 6514093669 , 8477048243
n×2
162716102
n×3
244074153
n×4
325432204
n×5
406790255
n÷2
40679025.5
n÷3
27119350.333333
n÷3
20339512.75
n÷5
16271610.2
n2
6619132462518601
n3
5.3851971646134E+23
n4
4.3812914556368E+31
n5
3.5645333369356E+39
2 √n
9019.8697884171
3 √n
433.31146352481
4 √n
94.972995048156
5 √n
38.201472837754
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
-81358050
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 81358051 can be divided by 4 positive divisors.
The sum of these divisors (counting 81358051) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110010110110011100011
3
Ternary
12200002102021011
4
Quaternary
10312112303203
5
Quinary
131311424201
6
Senary
12023441351
8
Octal
466266343
10
Decimal
81358051
12
Duodecimal
232b6257
16
Hexadecimal
4d96ce3
20
Vigesimal
1589f2b
36
Base36
1cfs9v
md5
19d863a6b4ddc4f352b75efc1fa3b579
sha1
70e5fdfbe948de8dea008c09bbef3b8f07dfa2d0
sha256
074649984e675014ffb37976b96b89b23c68da85f7f86e8c242c17f0baf7ab30
sha512
440f06b7a34726a408a1adb25866d177184a86fda173d3488d276e84eba3e8538aa13efccc8e30d34d05ad3799e89d6b1098ff11401cd273c6b3355830ef3097
ripemd-160
0abe75288b084768c4c10a20c5b2a3a28219bc85
Diameter
162716102
Circumference
511187710.66397
Area
2.0794617917386E+16
Volume
2.2557461133976E+24
Surface area
8.3178471669545E+16
Circumference
511187710.66397
Perimeter
325432204
Area
6619132462518601
Diagonal
115057659.13244
Surface area
39714794775111606
Volume
5.3851971646134E+23
Space diagonal
140916277.93678
Perimeter
244074153
Area
2.8661684317777E+15
Altitude
70458138.96839
Surface area
2.8661684317777E+15
Volume
6.3465157218746E+22
Height
38352553.044147