80821921 is an odd 8-digits composite number following 80821920
and preceding 80821922 . In scientific notation, it is written as 8.0821921 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 79976832 positive integers (up to 80821921) that are relatively prime to 80821921.
80821921 has 8 divisors, whose sum is 81671400
The reverse of 80821921 is 12912808
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
eighty million eight hundred twenty-one thousand nine hundred twenty-one
Scientific notation
8.0821921 × 10^7
Engineering notation
8.0821921 × 10^6
Prime Factorization
313 × 149 × 1733
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
80821921
Product of the distinct prime numbers
The prime factorization of 80821921 is 313 × 149 × 1733.
Since it has a total of 3 prime factors.
7 , 7 , 64 , 97 , 453 , 715 , 3262 , 2310 , 46227 , 25094 , 131959 , 118681 , 1990981 , 293816 , 64715997 , 7202117 , 364969674 , 108374223 , 6731098747 , 5275395399
n×2
161643842
n×3
242465763
n×4
323287684
n×5
404109605
n÷2
40410960.5
n÷3
26940640.333333
n÷3
20205480.25
n÷5
16164384.2
n2
6532182914130241
n3
5.2794357144338E+23
n4
4.2669413623655E+31
n5
3.4486239770074E+39
2 √n
8990.1012786286
3 √n
432.35755898264
4 √n
94.8161446096
5 √n
38.150991894192
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
-80821920
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 80821921 can be divided by 8 positive divisors.
The sum of these divisors (counting 80821921) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110100010011111010100001
3
Ternary
12122002011211111
4
Quaternary
10310103322201
5
Quinary
131142300141
6
Senary
12004143321
8
Octal
464237241
10
Decimal
80821921
12
Duodecimal
23097b41
16
Hexadecimal
4d13ea1
20
Vigesimal
1552eg1
36
Base36
1c4ald
md5
56547ee565f1eda4ce6542188f73c1f8
sha1
4d830be28db799c34046aa7809ca1a7c7af6da90
sha256
36954f96d9a99b3b5faeb16f898a2f864cb6e1bcd8d0d73244769d6b0f07ce11
sha512
fc426e82cd1279f0a72a2944cac70f082b38298602e6639eeedd35cc3196a2cfa749750b18cbf4096c496c657065d6748f141534939d6ba09e2f8bfc722768d0
ripemd-160
32c549c46e0d9861883893c62dcc7fd8946be502
Diameter
161643842
Circumference
507819106.52523
Area
2.0521457854936E+16
Volume
2.211444860742E+24
Surface area
8.2085831419745E+16
Circumference
507819106.52523
Perimeter
323287684
Area
6532182914130241
Diagonal
114299456.81525
Surface area
39193097484781446
Volume
5.2794357144338E+23
Space diagonal
139987673.53732
Perimeter
242465763
Area
2.8285181729017E+15
Altitude
69993836.768659
Surface area
2.8285181729017E+15
Volume
6.2218746575244E+22
Height
38099818.938416