21403906 is an even 8-digits composite number following 21403905
and preceding 21403907 . In scientific notation, it is written as 2.1403906 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 10639920 positive integers (up to 21403906) that are relatively prime to 21403906.
21403906 has 8 divisors, whose sum is 32291964
The reverse of 21403906 is 60930412
Previous prime number is 173
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million four hundred three thousand nine hundred six
Scientific notation
2.1403906 × 10^7
Engineering notation
2.1403906 × 10^6
Prime Factorization
2 × 173 × 61861
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21403906
Product of the distinct prime numbers
The prime factorization of 21403906 is 2 × 173 × 61861.
Since it has a total of 3 prime factors.
8 , 9 , 58 , 75 , 840 , 486 , 7215 , 7112 , 85847 , 65110 , 94363 , 500400 , 9973994 , 3284413 , 89941227 , 75132650 , 655660689 , 64236582 , 7578368248 , 1187542001
n×2
42807812
n×3
64211718
n×4
85615624
n×5
107019530
n÷2
10701953
n÷3
7134635.3333333
n÷3
5350976.5
n÷5
4280781.2
n2
458127192056836
n3
9.8057113548285E+21
n4
2.0988052410188E+29
n5
4.4922630091074E+36
2 √n
4626.4355609908
3 √n
277.65000033673
4 √n
68.017906179114
5 √n
29.248163849758
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
-21403905
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 21403906 can be divided by 8 positive divisors.
The sum of these divisors (counting 21403906) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001101001100100000010
3
Ternary
1111021102122021
4
Quaternary
1101221210002
5
Quinary
20434411111
6
Senary
2042432054
8
Octal
121514402
10
Decimal
21403906
12
Duodecimal
720262a
16
Hexadecimal
1469902
20
Vigesimal
6df9f6
36
Base36
cqrcy
md5
e694d141a7125c922b094b4e12b88e32
sha1
82f3fda29d72292c801dec45c32b8557ccc1fa5e
sha256
2fb4bedfb9cd33803102a70819e13218645cf5555a1de4a1ba98d17f68c251e5
sha512
1791565ddb7a637870201553daaf4340160afbaeeb9c01f912e272bb56f1ccdfbf5bbb65862c40bf5c1b1ab5d5a7339a4e2f912120e4a7e4688f3bd7491a6c7e
ripemd-160
26f6f8674505cae76fc5ca1e389bc14e42dd996b
Diameter
42807812
Circumference
134484707.69545
Area
1.4392490209755E+15
Volume
4.1074067674068E+22
Surface area
5.7569960839019E+15
Circumference
134484707.69545
Perimeter
85615624
Area
458127192056836
Diagonal
30269694.152959
Surface area
2748763152341016
Volume
9.8057113548285E+21
Space diagonal
37072652.672428
Perimeter
64211718
Area
1.9837489324283E+14
Altitude
18536326.336214
Surface area
1.9837489324283E+14
Volume
1.1556141655595E+21
Height
10089898.050986