21497631 is an odd 8-digits composite number following 21497630
and preceding 21497632 . In scientific notation, it is written as 2.1497631 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 14320152 positive integers (up to 21497631) that are relatively prime to 21497631.
21497631 has 8 divisors, whose sum is 28686720
The reverse of 21497631 is 13679412
Previous prime number is 1783
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million four hundred ninety-seven thousand six hundred thirty-one
Scientific notation
2.1497631 × 10^7
Engineering notation
2.1497631 × 10^6
Prime Factorization
3 × 1783 × 4019
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21497631
Product of the distinct prime numbers
The prime factorization of 21497631 is 3 × 1783 × 4019.
Since it has a total of 3 prime factors.
2 , 6 , 28 , 78 , 105 , 254 , 5891 , 8022 , 8054 , 92868 , 533025 , 860180 , 649795 , 7143097 , 2873197 , 40427876 , 119161810 , 991347648 , 5784435547 , 4603072945
n×2
42995262
n×3
64492893
n×4
85990524
n×5
107488155
n÷2
10748815.5
n÷3
7165877
n÷3
5374407.75
n÷5
4299526.2
n2
462148138612161
n3
9.9350901512211E+21
n4
2.1358090202269E+29
n5
4.5914834203308E+36
2 √n
4636.5537848708
3 √n
278.05467499402
4 √n
68.092244674932
5 √n
29.273733904482
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
-21497630
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 21497631 can be divided by 8 positive divisors.
The sum of these divisors (counting 21497631) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000000011100011111
3
Ternary
1111110012012120
4
Quaternary
1102000130133
5
Quinary
21000411011
6
Senary
2044434023
8
Octal
122003437
10
Decimal
21497631
12
Duodecimal
7248913
16
Hexadecimal
148071f
20
Vigesimal
6e741b
36
Base36
csrof
md5
03d69c4594bc49f125bc9198d71d39aa
sha1
e7b39e43aed243693a5712c6262cded5c8f8828f
sha256
522d658603f722a02d5d3c1e07f6106d1d4980ae6420039e9719e67b354d3251
sha512
6fea162b22ee7e458f9f83011cf0be453dbe74bf66faef5af4d21905b8016946590575a15e8c49a2473727d4899414aa04bf00aa9fb22935dea41382c72b0cee
ripemd-160
0b4c4f50b69bed00caaa120f68b9a4e1b992dc7a
Diameter
42995262
Circumference
135073599.23837
Area
1.4518811971342E+15
Volume
4.1616008309105E+22
Surface area
5.8075247885366E+15
Circumference
135073599.23837
Perimeter
85990524
Area
462148138612161
Diagonal
30402241.319092
Surface area
2772888831672966
Volume
9.9350901512211E+21
Space diagonal
37234989.134368
Perimeter
64492893
Area
2.0011601417491E+14
Altitude
18617494.567184
Surface area
2.0011601417491E+14
Volume
1.170861602938E+21
Height
10134080.439697