21031408 is an even 8-digits composite number following 21031407
and preceding 21031409 . In scientific notation, it is written as 2.1031408 × 10^7.
The sum of its digits is 19. It has a total of 5 prime factors and 10 positive divisors.
There are 10515696 positive integers (up to 21031408) that are relatively prime to 21031408.
21031408 has 10 divisors, whose sum is 40748384
The reverse of 21031408 is 80413012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million thirty-one thousand four hundred eight
Scientific notation
2.1031408 × 10^7
Engineering notation
2.1031408 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 1314463
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2628926
Product of the distinct prime numbers
The prime factorization of 21031408 is 2 × 2 × 2 × 2 × 1314463.
Since it has a total of 5 prime factors.
7 , 7 , 12 , 11 , 406 , 337 , 4848 , 2062 , 8017 , 94262 , 368243 , 850631 , 23016 , 8507855 , 4596178 , 46114166 , 495244602 , 647028196 , 7856642064 , 2290496412
n×2
42062816
n×3
63094224
n×4
84125632
n×5
105157040
n÷2
10515704
n÷3
7010469.3333333
n÷3
5257852
n÷5
4206281.6
n2
442320122462464
n3
9.302614962118E+21
n4
1.9564709073521E+29
n5
4.1147337892652E+36
2 √n
4586.0013083295
3 √n
276.02989244253
4 √n
67.720021473191
5 √n
29.14564492725
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031407
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031408 can be divided by 10 positive divisors.
The sum of these divisors (counting 21031408) is 1, the average is 0.1.
Base
System
Value
2
Binary
1010000001110100111110000
3
Ternary
1110120111200001
4
Quaternary
1100032213300
5
Quinary
20341001113
6
Senary
2030435344
8
Octal
120164760
10
Decimal
21031408
12
Duodecimal
7062b54
16
Hexadecimal
140e9f0
20
Vigesimal
6b8ia8
36
Base36
cirxs
md5
a3912aded03c38ad226689822bfa1168
sha1
ca6ca148be812ef93d3c29c048a380c42cbceee3
sha256
566a0abccff4c92d897af623e530461a8d9cd7067ef4a304d060bf890622a6c8
sha512
75803ab662decd72e2da8306f19455064a519c44d584953bd1bcc0a0b85528e160a295f363cdf62643bf75f8c5198c1186c1a3450a7110507fee80dc52bb55ff
ripemd-160
c0fcbcecda0f8542c157ae60796670c898318226
Diameter
42062816
Circumference
132144233.7349
Area
1.389589647263E+15
Volume
3.8966702432219E+22
Surface area
5.5583585890521E+15
Circumference
132144233.7349
Perimeter
84125632
Area
442320122462464
Diagonal
29742902.429402
Surface area
2653920734774784
Volume
9.302614962118E+21
Space diagonal
36427467.210711
Perimeter
63094224
Area
1.9153023132877E+14
Altitude
18213733.605355
Surface area
1.9153023132877E+14
Volume
1.0963236870802E+21
Height
9914300.8098007