21291254 is an even 8-digits composite number following 21291253
and preceding 21291255 . In scientific notation, it is written as 2.1291254 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 10636920 positive integers (up to 21291254) that are relatively prime to 21291254.
21291254 has 8 divisors, whose sum is 31963008
The reverse of 21291254 is 45219212
Previous prime number is 1471
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million two hundred ninety-one thousand two hundred fifty-four
Scientific notation
2.1291254 × 10^7
Engineering notation
2.1291254 × 10^6
Prime Factorization
2 × 1471 × 7237
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21291254
Product of the distinct prime numbers
The prime factorization of 21291254 is 2 × 1471 × 7237.
Since it has a total of 3 prime factors.
7 , 7 , 51 , 42 , 163 , 586 , 8426 , 7085 , 14758 , 44807 , 1129 , 145781 , 3104757 , 7945331 , 79938980 , 34973378 , 22163496 , 594969884 , 3050683688 , 9888785798
n×2
42582508
n×3
63873762
n×4
85165016
n×5
106456270
n÷2
10645627
n÷3
7097084.6666667
n÷3
5322813.5
n÷5
4258250.8
n2
453317496892516
n3
9.6516979689828E+21
n4
2.054967529889E+29
n5
4.3752835640618E+36
2 √n
4614.2446835858
3 √n
277.16203858858
4 √n
67.928231859705
5 √n
29.217311325106
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
-21291253
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 21291254 can be divided by 8 positive divisors.
The sum of these divisors (counting 21291254) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001001110000011110110
3
Ternary
1111001201002222
4
Quaternary
1101032003312
5
Quinary
20422310004
6
Senary
2040202342
8
Octal
121160366
10
Decimal
21291254
12
Duodecimal
71693b2
16
Hexadecimal
144e0f6
20
Vigesimal
6d182e
36
Base36
cocfq
md5
b5bfd78579a3a574ec2dd5ff29a78324
sha1
498a321c2fa3e0a22fbf96cda8ff2bee8442293b
sha256
9ea43be1269716c041133e8372da86dc4357ceb42d6eaef4615c3b054154b910
sha512
326a2e41082205c76dd61dff7ad5a98aa899a79199c3971a9736ea7e363268b133a14e05ca9c3372ad0f4440608f5a29033e5d8ed01fa0e967e01a2ae78b07be
ripemd-160
513874877c57c7cf8308f8a6c544a693d42158dc
Diameter
42582508
Circumference
133776894.30423
Area
1.4241389179812E+15
Volume
4.0428937912032E+22
Surface area
5.696555671925E+15
Circumference
133776894.30423
Perimeter
85165016
Area
453317496892516
Diagonal
30110380.16673
Surface area
2719904981355096
Volume
9.6516979689828E+21
Space diagonal
36877533.684854
Perimeter
63873762
Area
1.9629223414445E+14
Altitude
18438766.842427
Surface area
1.9629223414445E+14
Volume
1.137463513972E+21
Height
10036793.38891