81873896 is an even 8-digits composite number following 81873895
and preceding 81873897 . In scientific notation, it is written as 8.1873896 × 10^7.
The sum of its digits is 50. It has a total of 6 prime factors and 32 positive divisors.
There are 36764928 positive integers (up to 81873896) that are relatively prime to 81873896.
81873896 has 32 divisors, whose sum is 169798440
The reverse of 81873896 is 69837818
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighty-one million eight hundred seventy-three thousand eight hundred ninety-six
Scientific notation
8.1873896 × 10^7
Engineering notation
8.1873896 × 10^6
Prime Factorization
2 × 2 × 2 × 37 × 13 × 21277
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
20468474
Product of the distinct prime numbers
The prime factorization of 81873896 is 2 × 2 × 2 × 37 × 13 × 21277.
Since it has a total of 6 prime factors.
3 , 1 , 59 , 69 , 936 , 71 , 6484 , 7542 , 83458 , 24651 , 967166 , 701583 , 8138587 , 9738757 , 75005674 , 5602436 , 446774049 , 246436575 , 3261069710 , 1707082269
n×2
163747792
n×3
245621688
n×4
327495584
n×5
409369480
n÷2
40936948
n÷3
27291298.666667
n÷3
20468474
n÷5
16374779.2
n2
6703334846218816
n3
5.488281400525E+23
n4
4.4934698060531E+31
n5
3.6789787957994E+39
2 √n
9048.4195305037
3 √n
434.22532842462
4 √n
95.123180826251
5 √n
38.249793194258
1 , 2 , 4 , 8 , 13 , 26 , 37 , 52 , 74 , 104 , 148 , 296 , 481 , 962 , 1924 , 3848 , 21277 , 42554 , 85108 , 170216 , 276601 , 553202 , 787249 , 1106404 , 1574498 , 2212808 , 3148996 , 6297992 , 10234237 , 20468474 , 40936948 , 81873896
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81873895
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81873896 can be divided by 32 positive divisors.
The sum of these divisors (counting 81873896) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100111000010100101111101000
3
Ternary
12201001121212112
4
Quaternary
10320110233220
5
Quinary
131424431041
6
Senary
12042501452
8
Octal
470245750
10
Decimal
81873896
12
Duodecimal
23504888
16
Hexadecimal
4e14be8
20
Vigesimal
15be4eg
36
Base36
1cquaw
md5
82afba9bbb504fd1a14d4814a497ac7a
sha1
fb543581c0fbca851cb49a5c33817691b16a3cbe
sha256
a0a562c02e0135e4f24f4ca33aace62c6809725b4f4c81649b55916567e53125
sha512
8ba4e587fa43b76b197b2b9f8d0b81e77d568b9774664fdd94b472203a6cc6afb369aa5a66d007b6af44b7eadc387472163709d822d39440133113125b8c6cec
ripemd-160
f4c4291ff90f6eb0678279ff197e1538c965a736
Diameter
163747792
Circumference
514428860.38875
Area
2.1059147507433E+16
Volume
2.298925937163E+24
Surface area
8.4236590029734E+16
Circumference
514428860.38875
Perimeter
327495584
Area
6703334846218816
Diagonal
115787174.12752
Surface area
40220009077312896
Volume
5.488281400525E+23
Space diagonal
141809747.68561
Perimeter
245621688
Area
2.9026291334495E+15
Altitude
70904873.842805
Surface area
2.9026291334495E+15
Volume
6.468001658952E+22
Height
38595724.709175