21861007 is an odd 8-digits composite number following 21861006
and preceding 21861008 . In scientific notation, it is written as 2.1861007 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 18681936 positive integers (up to 21861007) that are relatively prime to 21861007.
21861007 has 12 divisors, whose sum is 25506360
The reverse of 21861007 is 70016812
Previous prime number is 659
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million eight hundred sixty-one thousand seven
Scientific notation
2.1861007 × 10^7
Engineering notation
2.1861007 × 10^6
Prime Factorization
7 × 7 × 659 × 677
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
3123001
Product of the distinct prime numbers
The prime factorization of 21861007 is 7 × 7 × 659 × 677.
Since it has a total of 4 prime factors.
6 , 4 , 62 , 75 , 813 , 372 , 3550 , 8622 , 99028 , 83728 , 763841 , 197600 , 4994185 , 7199222 , 89007885 , 94842590 , 551156289 , 420905718 , 7551477898 , 5757683261
n×2
43722014
n×3
65583021
n×4
87444028
n×5
109305035
n÷2
10930503.5
n÷3
7287002.3333333
n÷3
5465251.75
n÷5
4372201.4
n2
477903627054049
n3
1.0447454536354E+22
n4
2.2839187675142E+29
n5
4.9928764164058E+36
2 √n
4675.575579541
3 √n
279.61258922182
4 √n
68.378180580804
5 √n
29.3720347035
1 , 7 , 49 , 659 , 677 , 4613 , 4739 , 32291 , 33173 , 446143 , 3123001 , 21861007
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
-21861006
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 21861007 can be divided by 12 positive divisors.
The sum of these divisors (counting 21861007) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010011011001001010001111
3
Ternary
1112010122122221
4
Quaternary
1103121022033
5
Quinary
21044023012
6
Senary
2100320211
8
Octal
123311217
10
Decimal
21861007
12
Duodecimal
73a3067
16
Hexadecimal
14d928f
20
Vigesimal
6gcca7
36
Base36
d0k27
md5
0c5e8c365aa0745cb92c31455bc221c7
sha1
452c81a9c401350335ab02beb8510cee0637c61d
sha256
74fa8eb8e10109092442b0cc6a49568859b6be3da87fe96d47218949a8d0a752
sha512
f3b9d2895b8266bf97971be2f2e2c04ebd6348edb9352b7b65dae1fe36b6b7272461a03b83d644029c78dcd5003ad8acf928553ae0bc13182a1729da77dbf09a
ripemd-160
915e0eed8ced9a97843fbe9d9d708d5b79c18447
Diameter
43722014
Circumference
137356757.98255
Area
1.5013785238769E+15
Volume
4.3762195226831E+22
Surface area
6.0055140955077E+15
Circumference
137356757.98255
Perimeter
87444028
Area
477903627054049
Diagonal
30916132.586533
Surface area
2867421762324294
Volume
1.0447454536354E+22
Space diagonal
37864374.828619
Perimeter
65583021
Area
2.0693834079477E+14
Altitude
18932187.414309
Surface area
2.0693834079477E+14
Volume
1.231244324799E+21
Height
10305377.528844