81298051 is an odd 8-digits composite number following 81298050
and preceding 81298052 . In scientific notation, it is written as 8.1298051 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 81260872 positive integers (up to 81298051) that are relatively prime to 81298051.
81298051 has 4 divisors, whose sum is 81335232
The reverse of 81298051 is 15089218
Previous prime number is 34847
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million two hundred ninety-eight thousand fifty-one
Scientific notation
8.1298051 × 10^7
Engineering notation
8.1298051 × 10^6
Prime Factorization
34847 × 2333
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81298051
Product of the distinct prime numbers
The prime factorization of 81298051 is 34847 × 2333.
Since it has a total of 2 prime factors.
3 , 5 , 68 , 48 , 816 , 266 , 3657 , 9371 , 62615 , 88184 , 503289 , 319147 , 5564926 , 1974284 , 8391268 , 48943046 , 509687552 , 987248072 , 8921315975 , 6703627043
n×2
162596102
n×3
243894153
n×4
325192204
n×5
406490255
n÷2
40649025.5
n÷3
27099350.333333
n÷3
20324512.75
n÷5
16259610.2
n2
6609373096398601
n3
5.3732915106904E+23
n4
4.3683812727398E+31
n5
3.5514088349864E+39
2 √n
9016.5431846135
3 √n
433.20491770138
4 √n
94.955480013602
5 √n
38.195836604364
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
-81298050
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 81298051 can be divided by 4 positive divisors.
The sum of these divisors (counting 81298051) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110001000001010000011
3
Ternary
12122222100221221
4
Quaternary
10312020022003
5
Quinary
131303014201
6
Senary
12022255511
8
Octal
466101203
10
Decimal
81298051
12
Duodecimal
23287597
16
Hexadecimal
4d88283
20
Vigesimal
158252b
36
Base36
1cehz7
md5
6bf73949abe6285d9c3fc9c37b49f56b
sha1
e2cdbd5455813eb7b917d63a4a1d94d05a5bfb48
sha256
bbf2415db789297388bf28cbe4ca182573d6c5e7154445df2e2be074f8458329
sha512
755a47c2576bfe6d89fd2af30630b34cb4e7005c6bb71c600048cf71fd89c786b431a332c67a9eab2df492d888f08786cc5f2f6f1d5f89c803364f9b19a559c1
ripemd-160
adfbd5c86aa1ed84675a61d6fba0b54250e19094
Diameter
162596102
Circumference
510810719.54554
Area
2.076395796448E+16
Volume
2.2507590847442E+24
Surface area
8.3055831857919E+16
Circumference
510810719.54554
Perimeter
325192204
Area
6609373096398601
Diagonal
114972806.3187
Surface area
39656238578391606
Volume
5.3732915106904E+23
Space diagonal
140812354.88833
Perimeter
243894153
Area
2.8619425022853E+15
Altitude
70406177.444163
Surface area
2.8619425022853E+15
Volume
6.3324847741688E+22
Height
38324268.7729