81872023 is an odd 8-digits composite number following 81872022
and preceding 81872024 . In scientific notation, it is written as 8.1872023 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 79073400 positive integers (up to 81872023) that are relatively prime to 81872023.
81872023 has 8 divisors, whose sum is 84681216
The reverse of 81872023 is 32027818
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty-one million eight hundred seventy-two thousand twenty-three
Scientific notation
8.1872023 × 10^7
Engineering notation
8.1872023 × 10^6
Prime Factorization
563 × 31 × 4691
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81872023
Product of the distinct prime numbers
The prime factorization of 81872023 is 563 × 31 × 4691.
Since it has a total of 3 prime factors.
2 , 10 , 29 , 11 , 15 , 639 , 9147 , 411 , 30723 , 88353 , 911981 , 973615 , 9162309 , 1062418 , 28789348 , 45381509 , 991583155 , 771126968 , 6818542705 , 9806579979
n×2
163744046
n×3
245616069
n×4
327488092
n×5
409360115
n÷2
40936011.5
n÷3
27290674.333333
n÷3
20468005.75
n÷5
16374404.6
n2
6703028150112529
n3
5.4879047487566E+23
n4
4.4930586381201E+31
n5
3.6785580016052E+39
2 √n
9048.316031174
3 √n
434.22201719324
4 √n
95.12263679679
5 √n
38.249618187274
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
-81872022
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 81872023 can be divided by 8 positive divisors.
The sum of these divisors (counting 81872023) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111000010100010010010111
3
Ternary
12201001112022011
4
Quaternary
10320110102113
5
Quinary
131424401043
6
Senary
12042445051
8
Octal
470242227
10
Decimal
81872023
12
Duodecimal
23503787
16
Hexadecimal
4e14497
20
Vigesimal
15be013
36
Base36
1cqsuv
md5
13be1fc6a8b9dd172891e3a4d81df35e
sha1
749b976200d68664f26d821fe9e81c6d2b2ad623
sha256
0589cd940e928288cd12edde178c415155734f832cb077520bbca6a4683aa53b
sha512
242a3254aab8bdfa8f420fc4d67b70213f1d513ab3ecf66b6e187dd2b36d4cafb98e8199ab7e13ceb0db19146769ee321b5f4f838a7dc1ae8b247b7fd4b20afd
ripemd-160
5d2dea651a7e445a86a41ee9553679e4f67245f8
Diameter
163744046
Circumference
514417091.98267
Area
2.1058183993199E+16
Volume
2.2987681656392E+24
Surface area
8.4232735972796E+16
Circumference
514417091.98267
Perimeter
327488092
Area
6703028150112529
Diagonal
115784525.30552
Surface area
40218168900675174
Volume
5.4879047487566E+23
Space diagonal
141806503.55445
Perimeter
245616069
Area
2.9024963301398E+15
Altitude
70903251.777224
Surface area
2.9024963301398E+15
Volume
6.4675577705861E+22
Height
38594841.768507