21298081 is an odd 8-digits composite number following 21298080
and preceding 21298082 . In scientific notation, it is written as 2.1298081 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 18223920 positive integers (up to 21298081) that are relatively prime to 21298081.
21298081 has 8 divisors, whose sum is 24382784
The reverse of 21298081 is 18089212
Previous prime number is 661
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million two hundred ninety-eight thousand eighty-one
Scientific notation
2.1298081 × 10^7
Engineering notation
2.1298081 × 10^6
Prime Factorization
7 × 661 × 4603
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21298081
Product of the distinct prime numbers
The prime factorization of 21298081 is 7 × 661 × 4603.
Since it has a total of 3 prime factors.
5 , 6 , 11 , 72 , 332 , 31 , 765 , 4857 , 87812 , 11019 , 213530 , 936834 , 1091057 , 4228855 , 86572206 , 80702758 , 947912847 , 748710554 , 734117993 , 2961706499
n×2
42596162
n×3
63894243
n×4
85192324
n×5
106490405
n÷2
10649040.5
n÷3
7099360.3333333
n÷3
5324520.25
n÷5
4259616.2
n2
453608254282561
n3
9.6609853419786E+21
n4
2.0576044835327E+29
n5
4.3823026956243E+36
2 √n
4614.9843986735
3 √n
277.19165924928
4 √n
67.93367646958
5 √n
29.219184779868
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
-21298080
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 21298081 can be divided by 8 positive divisors.
The sum of these divisors (counting 21298081) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001001111101110100001
3
Ternary
1111002001110211
4
Quaternary
1101033232201
5
Quinary
20423014311
6
Senary
2040254121
8
Octal
121175641
10
Decimal
21298081
12
Duodecimal
7171341
16
Hexadecimal
144fba1
20
Vigesimal
6d2541
36
Base36
cohpd
md5
3b1af676505587a151ef1df00f37210c
sha1
d959aa71e80b24dad0d6618403b38ba0d08bb877
sha256
2a0166176f1cc9739c72442848de9b0453f2520c7abef4bb09022769b4537e0b
sha512
d2a104e15a9cb7fce80f9d7e0363f6c3b9781a47e09f20f249b8707c1c6fb8c877111b5d6333799399defc95d26c51d849f91ab63b4076c61581547c499579f8
ripemd-160
272fbc66f1e717c5766d2e837ac5667f1f326f27
Diameter
42596162
Circumference
133819789.61032
Area
1.4250523592618E+15
Volume
4.0467840769065E+22
Surface area
5.7002094370471E+15
Circumference
133819789.61032
Perimeter
85192324
Area
453608254282561
Diagonal
30120035.002721
Surface area
2721649525695366
Volume
9.6609853419786E+21
Space diagonal
36889358.395717
Perimeter
63894243
Area
1.964181357875E+14
Altitude
18444679.197859
Surface area
1.964181357875E+14
Volume
1.1385580413761E+21
Height
10040011.667574