81598021 is an odd 8-digits composite number following 81598020
and preceding 81598022 . In scientific notation, it is written as 8.1598021 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 81259200 positive integers (up to 81598021) that are relatively prime to 81598021.
81598021 has 4 divisors, whose sum is 81936844
The reverse of 81598021 is 12089518
Previous prime number is 241
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighty-one million five hundred ninety-eight thousand twenty-one
Scientific notation
8.1598021 × 10^7
Engineering notation
8.1598021 × 10^6
Prime Factorization
241 × 338581
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81598021
Product of the distinct prime numbers
The prime factorization of 81598021 is 241 × 338581.
Since it has a total of 2 prime factors.
1 , 2 , 30 , 8 , 328 , 73 , 2306 , 3340 , 27892 , 56938 , 186464 , 736320 , 9954346 , 7927503 , 20198831 , 39615065 , 459434958 , 962647299 , 2608491231 , 8226472934
n×2
163196042
n×3
244794063
n×4
326392084
n×5
407990105
n÷2
40799010.5
n÷3
27199340.333333
n÷3
20399505.25
n÷5
16319604.2
n2
6658237031116441
n3
5.4329896508802E+23
n4
4.433212036253E+31
n5
3.6174132883163E+39
2 √n
9033.1622923537
3 √n
433.73707059766
4 √n
95.042949724604
5 √n
38.223981761591
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
-81598020
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 81598021 can be divided by 4 positive divisors.
The sum of these divisors (counting 81598021) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111010001011001000101
3
Ternary
12200112121102221
4
Quaternary
10313101121011
5
Quinary
131342114041
6
Senary
12032532341
8
Octal
467213105
10
Decimal
81598021
12
Duodecimal
233b10b1
16
Hexadecimal
4dd1645
20
Vigesimal
159jf11
36
Base36
1ckxfp
md5
50b1335781673e8b712bf6f3d536b025
sha1
af5437d1567b99fc989990d889df77714f595e11
sha256
0ba81c62e78d1a45bb4c24c6e0b58ecf05dee28a4f5570a8c485e97517795c61
sha512
6f786d25db4776bb3d2ffba837e1e06b302292c2bb3137c9df193d4bbc7c9fe3f2cb9782c5ff5108ced50b4db55b1eadf452c605b1bc8592180217448b168d28
ripemd-160
438cdd997da4c60a3071f2f01378295dcbe14a32
Diameter
163196042
Circumference
512695486.64213
Area
2.0917468542815E+16
Volume
2.2757653832313E+24
Surface area
8.366987417126E+16
Circumference
512695486.64213
Perimeter
326392084
Area
6658237031116441
Diagonal
115397027.961
Surface area
39949422186698646
Volume
5.4329896508802E+23
Space diagonal
141331918.16907
Perimeter
244794063
Area
2.8831012066826E+15
Altitude
70665959.084536
Surface area
2.8831012066826E+15
Volume
6.4028397070895E+22
Height
38465675.987002