21491294 is an even 8-digits composite number following 21491293
and preceding 21491295 . In scientific notation, it is written as 2.1491294 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 9768660 positive integers (up to 21491294) that are relatively prime to 21491294.
21491294 has 12 divisors, whose sum is 35434392
The reverse of 21491294 is 49219412
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred ninety-one thousand two hundred ninety-four
Scientific notation
2.1491294 × 10^7
Engineering notation
2.1491294 × 10^6
Prime Factorization
2 × 11 × 11 × 88807
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1953754
Product of the distinct prime numbers
The prime factorization of 21491294 is 2 × 11 × 11 × 88807.
Since it has a total of 4 prime factors.
7 , 6 , 17 , 60 , 702 , 817 , 4805 , 8976 , 44914 , 61114 , 102639 , 951680 , 2382630 , 6712678 , 14162247 , 69904867 , 819832754 , 158965411 , 6808088005 , 808429952
n×2
42982588
n×3
64473882
n×4
85965176
n×5
107456470
n÷2
10745647
n÷3
7163764.6666667
n÷3
5372823.5
n÷5
4298258.8
n2
461875717794436
n3
9.9263068425813E+21
n4
2.1332917868813E+29
n5
4.584720097965E+36
2 √n
4635.8703605688
3 √n
278.02735096564
4 √n
68.087226118919
5 √n
29.272007858212
1 , 2 , 11 , 22 , 121 , 242 , 88807 , 177614 , 976877 , 1953754 , 10745647 , 21491294
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21491293
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491294 can be divided by 12 positive divisors.
The sum of these divisors (counting 21491294) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001111110111001011110
3
Ternary
1111102212111212
4
Quaternary
1101332321132
5
Quinary
21000210134
6
Senary
2044344422
8
Octal
121767136
10
Decimal
21491294
12
Duodecimal
7245112
16
Hexadecimal
147ee5e
20
Vigesimal
6e684e
36
Base36
csmse
md5
1595560b908946028af6e03b83ebea53
sha1
70a88719005f67fc043b914a56cce067275446e6
sha256
af5cc8d0be178e0f4191b7e9ef80735dc02fd6ebe6e9354209bac0e74541bd86
sha512
3e95a8296369dbba3aaef0f118a6c4732da655d7090eef7fcc43ac8a1eabd0ede4a53b824b3379b4bebd3666cf0caf15f6bfe448c45565da8a4500ba79fdd4d2
ripemd-160
c29551fdb995563b463eca0feb84992afa205be5
Diameter
42982588
Circumference
135033782.69308
Area
1.4510253618945E+15
Volume
4.1579216871908E+22
Surface area
5.804101447578E+15
Circumference
135033782.69308
Perimeter
85965176
Area
461875717794436
Diagonal
30393279.447748
Surface area
2771254306766616
Volume
9.9263068425813E+21
Space diagonal
37224013.1284
Perimeter
64473882
Area
1.9999805250058E+14
Altitude
18612006.5642
Surface area
1.9999805250058E+14
Volume
1.1698264800879E+21
Height
10131093.149249