21851372 is an even 8-digits composite number following 21851371
and preceding 21851373 . In scientific notation, it is written as 2.1851372 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 6 positive divisors.
There are 10925684 positive integers (up to 21851372) that are relatively prime to 21851372.
21851372 has 6 divisors, whose sum is 38239908
The reverse of 21851372 is 27315812
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million eight hundred fifty-one thousand three hundred seventy-two
Scientific notation
2.1851372 × 10^7
Engineering notation
2.1851372 × 10^6
Prime Factorization
2 × 2 × 5462843
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10925686
Product of the distinct prime numbers
The prime factorization of 21851372 is 2 × 2 × 5462843.
Since it has a total of 3 prime factors.
4 , 6 , 99 , 57 , 98 , 735 , 9081 , 5583 , 29975 , 15702 , 883766 , 986817 , 4658625 , 7555768 , 75918695 , 72482987 , 797063039 , 462987460 , 338254278 , 3162736893
n×2
43702744
n×3
65554116
n×4
87405488
n×5
109256860
n÷2
10925686
n÷3
7283790.6666667
n÷3
5462843
n÷5
4370274.4
n2
477482458282384
n3
1.0433646819403E+22
n4
2.2798949796739E+29
n5
4.9818833321787E+36
2 √n
4674.545111559
3 √n
279.57150445405
4 √n
68.370645101235
5 √n
29.369445166256
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21851371
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21851372 can be divided by 6 positive divisors.
The sum of these divisors (counting 21851372) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010011010110110011101100
3
Ternary
1112010011110002
4
Quaternary
1103112303230
5
Quinary
21043220442
6
Senary
2100203432
8
Octal
123266354
10
Decimal
21851372
12
Duodecimal
7399578
16
Hexadecimal
14d6cec
20
Vigesimal
6gb88c
36
Base36
d0cmk
md5
9da1d05b32e73d6638f0f5a63bc55078
sha1
d7d42c0811322bc2d51ded7043ba5eae6a2d3cba
sha256
8dd5f1e64e995c8ed07b1e5d7e2f1f0363c57981f97cb6f551924b1fe8062bfe
sha512
c0af95dbd9e0a4c7e3bd2813a3807e33af50ef6eb4c5375ae65ee88fe9929af685c95ef3fa9efdc4a7f9befb940de5a5c803096599b5b288da3345a8e0a1c90b
ripemd-160
b8030a353fe0ccf9c611ca4e52bd681577dedc32
Diameter
43702744
Circumference
137296219.49212
Area
1.5000553831579E+15
Volume
4.3704357597315E+22
Surface area
6.0002215326317E+15
Circumference
137296219.49212
Perimeter
87405488
Area
477482458282384
Diagonal
30902506.63886
Surface area
2864894749694304
Volume
1.0433646819403E+22
Space diagonal
37847686.519088
Perimeter
65554116
Area
2.0675596936699E+14
Altitude
18923843.259544
Surface area
2.0675596936699E+14
Volume
1.2296170697509E+21
Height
10300835.546287