21291252 is an even 8-digits composite number following 21291251
and preceding 21291253 . In scientific notation, it is written as 2.1291252 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 12 positive divisors.
There are 7097080 positive integers (up to 21291252) that are relatively prime to 21291252.
21291252 has 12 divisors, whose sum is 49679616
The reverse of 21291252 is 25219212
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million two hundred ninety-one thousand two hundred fifty-two
Scientific notation
2.1291252 × 10^7
Engineering notation
2.1291252 × 10^6
Prime Factorization
2 × 2 × 3 × 1774271
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10645626
Product of the distinct prime numbers
The prime factorization of 21291252 is 2 × 2 × 3 × 1774271.
Since it has a total of 4 prime factors.
7 , 5 , 77 , 97 , 264 , 902 , 7161 , 9705 , 78024 , 88031 , 319139 , 711424 , 2950971 , 9482736 , 19813038 , 18745234 , 676155966 , 925879675 , 3794699389 , 3157692495
n×2
42582504
n×3
63873756
n×4
85165008
n×5
106456260
n÷2
10645626
n÷3
7097084
n÷3
5322813
n÷5
4258250.4
n2
453317411727504
n3
9.651695249078E+21
n4
2.0549667577532E+29
n5
4.3752815090947E+36
2 √n
4614.2444668656
3 √n
277.16202991015
4 √n
67.92823026449
5 √n
29.217310776199
1 , 2 , 3 , 4 , 6 , 12 , 1774271 , 3548542 , 5322813 , 7097084 , 10645626 , 21291252
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
-21291251
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 21291252 can be divided by 12 positive divisors.
The sum of these divisors (counting 21291252) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001001110000011110100
3
Ternary
1111001201002220
4
Quaternary
1101032003310
5
Quinary
20422310002
6
Senary
2040202340
8
Octal
121160364
10
Decimal
21291252
12
Duodecimal
71693b0
16
Hexadecimal
144e0f4
20
Vigesimal
6d182c
36
Base36
cocfo
md5
3df3f78b432704a8b436004cbbfd8924
sha1
109473d4d74e6396e694dd8114363617f7115fc2
sha256
56a7f69c69e9c4184f713a0ce67d25400c013f50453335f96d2e3817ad47ddb3
sha512
671304b5c449fb7c6369115d2e495bc6f3b1d59dd6db828bfe23ea08809a777e44b85d89a420741402c5c790f4aa0a54ac13f103e761054258c0a8f7f93e695d
ripemd-160
8b3356cd36af71dafe5ac88355bcc61f69a49795
Diameter
42582504
Circumference
133776881.73786
Area
1.4241386504275E+15
Volume
4.0428926518921E+22
Surface area
5.6965546017099E+15
Circumference
133776881.73786
Perimeter
85165008
Area
453317411727504
Diagonal
30110377.338303
Surface area
2719904470365024
Volume
9.651695249078E+21
Space diagonal
36877530.220752
Perimeter
63873756
Area
1.9629219726691E+14
Altitude
18438765.110376
Surface area
1.9629219726691E+14
Volume
1.1374631934282E+21
Height
10036792.446101