21231256 is an even 8-digits composite number following 21231255
and preceding 21231257 . In scientific notation, it is written as 2.1231256 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 8 positive divisors.
There are 10615624 positive integers (up to 21231256) that are relatively prime to 21231256.
21231256 has 8 divisors, whose sum is 39808620
The reverse of 21231256 is 65213212
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million two hundred thirty-one thousand two hundred fifty-six
Scientific notation
2.1231256 × 10^7
Engineering notation
2.1231256 × 10^6
Prime Factorization
2 × 2 × 2 × 2653907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5307814
Product of the distinct prime numbers
The prime factorization of 21231256 is 2 × 2 × 2 × 2653907.
Since it has a total of 4 prime factors.
8 , 6 , 21 , 59 , 55 , 886 , 6880 , 5218 , 877 , 6025 , 308243 , 286809 , 5698631 , 5845248 , 1475515 , 94474668 , 143256029 , 705666495 , 854240845 , 2972273300
n×2
42462512
n×3
63693768
n×4
84925024
n×5
106156280
n÷2
10615628
n÷3
7077085.3333333
n÷3
5307814
n÷5
4246251.2
n2
450766231337536
n3
9.5703332536824E+21
n4
2.0319019531425E+29
n5
4.3139830534067E+36
2 √n
4607.7387078696
3 √n
276.90144938724
4 √n
67.88032636832
5 √n
29.200826062877
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
-21231255
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 21231256 can be divided by 8 positive divisors.
The sum of these divisors (counting 21231256) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000111111011010011000
3
Ternary
1110221122210211
4
Quaternary
1100333122120
5
Quinary
20413400011
6
Senary
2035020504
8
Octal
120773230
10
Decimal
21231256
12
Duodecimal
713a734
16
Hexadecimal
143f698
20
Vigesimal
6cdi2g
36
Base36
cn254
md5
ce80c05bc0335d23e24755bbf33a8cc9
sha1
9448b23d945947125be476abc8496e6434711d9c
sha256
c6fa0759e63dc44ac8e8de833832896ee1e31db53623afae1ccedea7567ed52d
sha512
373497e95a59692e8f9ee4760aca1e9df60a273e92304bd44077823cce4c4a498e352aa658875840641e227f53c9d02dc1232e84a966fab199e071c0ff4b03db
ripemd-160
a2655fd11e6c1b0aff22c7886622d83b22e6afd9
Diameter
42462512
Circumference
133399915.75217
Area
1.4161238808564E+15
Volume
4.0088118189567E+22
Surface area
5.6644955234254E+15
Circumference
133399915.75217
Perimeter
84925024
Area
450766231337536
Diagonal
30025530.181415
Surface area
2704597388025216
Volume
9.5703332536824E+21
Space diagonal
36773614.100502
Perimeter
63693768
Area
1.9518750375324E+14
Altitude
18386807.050251
Surface area
1.9518750375324E+14
Volume
1.1278745903157E+21
Height
10008510.060472