21386907 is an odd 8-digits composite number following 21386906
and preceding 21386908 . In scientific notation, it is written as 2.1386907 × 10^7.
The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors.
There are 14257932 positive integers (up to 21386907) that are relatively prime to 21386907.
21386907 has 4 divisors, whose sum is 23763240
The reverse of 21386907 is 70968312
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million three hundred eighty-six thousand nine hundred seven
Scientific notation
2.1386907 × 10^7
Engineering notation
2.1386907 × 10^6
Prime Factorization
9 × 2376323
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21386907
Product of the distinct prime numbers
The prime factorization of 21386907 is 9 × 2376323.
Since it has a total of 2 prime factors.
6 , 7 , 73 , 98 , 525 , 596 , 9679 , 5086 , 54267 , 11163 , 149465 , 904290 , 4449972 , 8846654 , 28284942 , 96116917 , 152889783 , 77420233 , 1962444850 , 3353859552
n×2
42773814
n×3
64160721
n×4
85547628
n×5
106934535
n÷2
10693453.5
n÷3
7128969
n÷3
5346726.75
n÷5
4277381.4
n2
457399791026649
n3
9.7823667925064E+21
n4
2.0921456883122E+29
n5
4.4744525266384E+36
2 √n
4624.5980365865
3 √n
277.57647758206
4 √n
68.004397185671
5 √n
29.243516589955
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21386906
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21386907 can be divided by 4 positive divisors.
The sum of these divisors (counting 21386907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100101011010011011
3
Ternary
1111020120022200
4
Quaternary
1101211122123
5
Quinary
20433340112
6
Senary
2042221243
8
Octal
121453233
10
Decimal
21386907
12
Duodecimal
71b4823
16
Hexadecimal
146569b
20
Vigesimal
6dd757
36
Base36
cqe8r
md5
ab456778148e37b1665c46345c4dddc7
sha1
5b0ee433a87617038e5d6f37f4c5bfc025166693
sha256
30bac180a51016365cc296d49048c8fb6b2646684525cda323b9dd723bfa9f41
sha512
e1dd6220650c41f55771184f0ee4ebbc1c9a95e80ec02dae3d4d1a60fbef39ddcd1f4362d801a757ceadedfdc93617f730a427197321251184c0f6e0faa4b955
ripemd-160
eef51913d3ddaa5c4a5cae2a6545a8890dc1e522
Diameter
42773814
Circumference
134377899.82842
Area
1.4369638232428E+15
Volume
4.0976282200078E+22
Surface area
5.7478552929713E+15
Circumference
134377899.82842
Perimeter
85547628
Area
457399791026649
Diagonal
30245653.936612
Surface area
2744398746159894
Volume
9.7823667925064E+21
Space diagonal
37043209.54075
Perimeter
64160721
Area
1.9805991935739E+14
Altitude
18521604.770375
Surface area
1.9805991935739E+14
Volume
1.1528629825059E+21
Height
10081884.645537