21125870 is an even 8-digits composite number following 21125869
and preceding 21125871 . In scientific notation, it is written as 2.1125870 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 8450344 positive integers (up to 21125870) that are relatively prime to 21125870.
21125870 has 8 divisors, whose sum is 38026584
The reverse of 21125870 is 07852112
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million one hundred twenty-five thousand eight hundred seventy
Scientific notation
2.1125870 × 10^7
Engineering notation
2.1125870 × 10^6
Prime Factorization
2 × 5 × 2112587
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21125870
Product of the distinct prime numbers
The prime factorization of 21125870 is 2 × 5 × 2112587.
Since it has a total of 3 prime factors.
5 , 6 , 30 , 8 , 84 , 203 , 2165 , 508 , 64685 , 67018 , 571063 , 411088 , 8617321 , 4843140 , 72931663 , 32680166 , 890384354 , 446668890 , 7162643528 , 3171763758
n×2
42251740
n×3
63377610
n×4
84503480
n×5
105629350
n÷2
10562935
n÷3
7041956.6666667
n÷3
5281467.5
n÷5
4225174
n2
446302383256900
n3
9.4285261293754E+21
n4
1.9918581730079E+29
n5
4.2079736821402E+36
2 √n
4596.2887202612
3 √n
276.44253553054
4 √n
67.795934393304
5 √n
29.17177939156
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
-21125869
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 21125870 can be divided by 8 positive divisors.
The sum of these divisors (counting 21125870) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100101101011101110
3
Ternary
1110202022020122
4
Quaternary
1100211223232
5
Quinary
20402011440
6
Senary
2032444542
8
Octal
120455356
10
Decimal
21125870
12
Duodecimal
70a9752
16
Hexadecimal
1425aee
20
Vigesimal
6c0eda
36
Base36
ckstq
md5
4a9c14cedc386726b09e95e4dbc47d42
sha1
8d1f7be8bf8955e109e1667fc7008c2f353c148a
sha256
ab793d0371eb6aa62df3ae4e8a31fc19f339884ed9488a0f24863d838adea3cd
sha512
316da7dc969c5cc3373cc6f7e86ea2ed4815b7432f1792117b6fbd8bba15361fabbbbce327ac0602c9fb2ddda2ac0f6d22cee3bf4274e20631df0c48f0a77d8e
ripemd-160
e8e48ae9c69a866aee48cc4972398a747bd6883a
Diameter
42251740
Circumference
132737755.98539
Area
1.4021002885195E+15
Volume
3.94941178963E+22
Surface area
5.608401154078E+15
Circumference
132737755.98539
Perimeter
84503480
Area
446302383256900
Diagonal
29876491.870931
Surface area
2677814299541400
Volume
9.4285261293754E+21
Space diagonal
36591080.194095
Perimeter
63377610
Area
1.9325460083501E+14
Altitude
18295540.097048
Surface area
1.9325460083501E+14
Volume
1.111162460446E+21
Height
9958830.6236436