80821918 is an even 8-digits composite number following 80821917
and preceding 80821919 . In scientific notation, it is written as 8.0821918 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 40410958 positive integers (up to 80821918) that are relatively prime to 80821918.
80821918 has 4 divisors, whose sum is 121232880
The reverse of 80821918 is 81912808
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
eighty million eight hundred twenty-one thousand nine hundred eighteen
Scientific notation
8.0821918 × 10^7
Engineering notation
8.0821918 × 10^6
Prime Factorization
2 × 40410959
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
80821918
Product of the distinct prime numbers
The prime factorization of 80821918 is 2 × 40410959.
Since it has a total of 2 prime factors.
10 , 1 , 77 , 38 , 105 , 129 , 3775 , 6831 , 15635 , 6842 , 177912 , 685481 , 7135580 , 2698195 , 86001371 , 81580567 , 685446860 , 544913026 , 4697414278 , 8125193021
n×2
161643836
n×3
242465754
n×4
323287672
n×5
404109590
n÷2
40410959
n÷3
26940639.333333
n÷3
20205479.5
n÷5
16164383.6
n2
6532182429198724
n3
5.2794351265374E+23
n4
4.2669407288333E+31
n5
3.4486233369662E+39
2 √n
8990.1011117784
3 √n
432.35755363313
4 √n
94.816143729739
5 √n
38.15099161097
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
-80821917
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 80821918 can be divided by 4 positive divisors.
The sum of these divisors (counting 80821918) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110100010011111010011110
3
Ternary
12122002011211101
4
Quaternary
10310103322132
5
Quinary
131142300133
6
Senary
12004143314
8
Octal
464237236
10
Decimal
80821918
12
Duodecimal
23097b3a
16
Hexadecimal
4d13e9e
20
Vigesimal
1552efi
36
Base36
1c4ala
md5
a6e2996fc1628af9e52517e0554adc95
sha1
b3da9cd2a202e63e2fbdff430d65c93a4663549c
sha256
a5ddd54f2cef5d72658831c7c90a5d697db5a4f4ebb204978aa30a54f3f28528
sha512
892c1c752027b62493d67f369d3b2232eef40a8ff46d545cf043fc28386a41cc3d7d5d44bd7f9d1c471e20afe7330b7175db4b5c5fc5425b0ab0b6b26ab28738
ripemd-160
19935d05929b48a74ffc3867ce13587b26599f70
Diameter
161643836
Circumference
507819087.67567
Area
2.0521456331479E+16
Volume
2.2114446144845E+24
Surface area
8.2085825325916E+16
Circumference
507819087.67567
Perimeter
323287672
Area
6532182429198724
Diagonal
114299452.57261
Surface area
39193094575192344
Volume
5.2794351265374E+23
Space diagonal
139987668.34117
Perimeter
242465754
Area
2.8285179629202E+15
Altitude
69993834.170583
Surface area
2.8285179629202E+15
Volume
6.2218739646818E+22
Height
38099817.524202