21006946 is an even 8-digits composite number following 21006945
and preceding 21006947 . In scientific notation, it is written as 2.1006946 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 10503472 positive integers (up to 21006946) that are relatively prime to 21006946.
21006946 has 4 divisors, whose sum is 31510422
The reverse of 21006946 is 64960012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million six thousand nine hundred forty-six
Scientific notation
2.1006946 × 10^7
Engineering notation
2.1006946 × 10^6
Prime Factorization
2 × 10503473
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21006946
Product of the distinct prime numbers
The prime factorization of 21006946 is 2 × 10503473.
Since it has a total of 2 prime factors.
6 , 8 , 68 , 15 , 115 , 131 , 5412 , 2605 , 47802 , 36973 , 78964 , 449640 , 2308604 , 8417392 , 15373704 , 84697115 , 479882466 , 819776878 , 6723770667 , 9711988857
n×2
42013892
n×3
63020838
n×4
84027784
n×5
105034730
n÷2
10503473
n÷3
7002315.3333333
n÷3
5251736.5
n÷5
4201389.2
n2
441291780246916
n3
9.2701925978908E+21
n4
1.9473843531349E+29
n5
4.090859794755E+36
2 √n
4583.3335030303
3 √n
275.92283251885
4 √n
67.700321291928
5 √n
29.138861808395
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
-21006945
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 21006946 can be divided by 4 positive divisors.
The sum of these divisors (counting 21006946) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001000101001100010
3
Ternary
1110112021010001
4
Quaternary
1100020221202
5
Quinary
20334210241
6
Senary
2030130214
8
Octal
120105142
10
Decimal
21006946
12
Duodecimal
705096a
16
Hexadecimal
1408a62
20
Vigesimal
6b5h76
36
Base36
ci92a
md5
c618e226245d64d8f22b888da59d9cff
sha1
28e1cb3fd362aecc440abbd83b500b5e9a029b13
sha256
9d85f89c221aab3611ec272e9baa66bee902f1e786967674f4cd14659496e521
sha512
f2c5e3cce6d8bb5dea706ec1c357b6201c70f396e751067de94604db054a4fd42fb7f4cee81708cc60a55bd9312e95946ac70af83a7b7ae3948784e3baa8eaca
ripemd-160
c8871689fe663e5990923fb2edab389cfaff6283
Diameter
42013892
Circumference
131990534.45591
Area
1.3863590149133E+15
Volume
3.8830891950528E+22
Surface area
5.5454360596531E+15
Circumference
131990534.45591
Perimeter
84027784
Area
441291780246916
Diagonal
29708307.937239
Surface area
2647750681481496
Volume
9.2701925978908E+21
Space diagonal
36385097.783856
Perimeter
63020838
Area
1.9108494608754E+14
Altitude
18192548.891928
Surface area
1.9108494608754E+14
Volume
1.0925026748123E+21
Height
9902769.3124131