21497902 is an even 8-digits composite number following 21497901
and preceding 21497903 . In scientific notation, it is written as 2.1497902 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 10748950 positive integers (up to 21497902) that are relatively prime to 21497902.
21497902 has 4 divisors, whose sum is 32246856
The reverse of 21497902 is 20979412
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred ninety-seven thousand nine hundred two
Scientific notation
2.1497902 × 10^7
Engineering notation
2.1497902 × 10^6
Prime Factorization
2 × 10748951
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21497902
Product of the distinct prime numbers
The prime factorization of 21497902 is 2 × 10748951.
Since it has a total of 2 prime factors.
4 , 2 , 15 , 70 , 380 , 771 , 9900 , 69 , 37025 , 59147 , 635015 , 682999 , 1239623 , 5231340 , 7158367 , 52283206 , 186681244 , 50358938 , 6691413939 , 5057452142
n×2
42995804
n×3
64493706
n×4
85991608
n×5
107489510
n÷2
10748951
n÷3
7165967.3333333
n÷3
5374475.5
n÷5
4299580.4
n2
462159790401604
n3
9.9354658823942E+21
n4
2.1359167186405E+29
n5
4.5917728297496E+36
2 √n
4636.5830090704
3 √n
278.05584337858
4 √n
68.092459267311
5 √n
29.273807709283
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
-21497901
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 21497902 can be divided by 4 positive divisors.
The sum of these divisors (counting 21497902) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010000000100000101110
3
Ternary
1111110012120121
4
Quaternary
1102000200232
5
Quinary
21000413102
6
Senary
2044435154
8
Octal
122004056
10
Decimal
21497902
12
Duodecimal
7248aba
16
Hexadecimal
148082e
20
Vigesimal
6e74f2
36
Base36
csrvy
md5
2adfd88a49835ae7457ceaa0be1d2d0f
sha1
d72bd2ad9b42cca08a50afa01a763c573ca4cf63
sha256
9ab27544542b0c877ec42e1ed57b086936fcd6cf2527b32bff05aefd0d0239ee
sha512
1360abc72b7a8c80de2eae757c2e25bd290fd1f9e00c0288bf2e022fb1b34a498fbba68b5fc3249cced7257487918041eb8c4001b0342c89fa106932c4b350b1
ripemd-160
2417b6c8fb099f6fff273bb8e1ff9b2c8356a77e
Diameter
42995804
Circumference
135075301.98159
Area
1.4519178023103E+15
Volume
4.1617582168162E+22
Surface area
5.8076712092411E+15
Circumference
135075301.98159
Perimeter
85991608
Area
462159790401604
Diagonal
30402624.570968
Surface area
2772958742409624
Volume
9.9354658823942E+21
Space diagonal
37235458.520137
Perimeter
64493706
Area
2.0012105954774E+14
Altitude
18617729.260068
Surface area
2.0012105954774E+14
Volume
1.1709058832814E+21
Height
10134208.190323