20991962 is an even 8-digits composite number following 20991961
and preceding 20991963 . In scientific notation, it is written as 2.0991962 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors.
There are 9963360 positive integers (up to 20991962) that are relatively prime to 20991962.
20991962 has 16 divisors, whose sum is 33106752
The reverse of 20991962 is 26919902
Previous prime number is 137
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million nine hundred ninety-one thousand nine hundred sixty-two
Scientific notation
2.0991962 × 10^7
Engineering notation
2.0991962 × 10^6
Prime Factorization
2 × 23 × 137 × 3331
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20991962
Product of the distinct prime numbers
The prime factorization of 20991962 is 2 × 23 × 137 × 3331.
Since it has a total of 4 prime factors.
4 , 3 , 61 , 56 , 381 , 333 , 8267 , 7067 , 96110 , 75153 , 458180 , 763416 , 2529868 , 6885794 , 31341274 , 80213639 , 455045552 , 355742188 , 6801939427 , 8460673124
n×2
41983924
n×3
62975886
n×4
83967848
n×5
104959810
n÷2
10495981
n÷3
6997320.6666667
n÷3
5247990.5
n÷5
4198392.4
n2
440662468609444
n3
9.2503697958756E+21
n4
1.9418341124097E+29
n5
4.0762907898008E+36
2 √n
4581.6985933167
3 √n
275.85721277694
4 √n
67.688245606728
5 √n
29.134703742467
1 , 2 , 23 , 46 , 137 , 274 , 3151 , 3331 , 6302 , 6662 , 76613 , 153226 , 456347 , 912694 , 10495981 , 20991962
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20991961
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20991962 can be divided by 16 positive divisors.
The sum of these divisors (counting 20991962) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000100111111011010
3
Ternary
1110111111120002
4
Quaternary
1100010333122
5
Quinary
20333220322
6
Senary
2025533002
8
Octal
120047732
10
Decimal
20991962
12
Duodecimal
7044162
16
Hexadecimal
1404fda
20
Vigesimal
6b3ji2
36
Base36
chxi2
md5
15fd92f4b4034667070efbe4b163b422
sha1
5cba7fbeff6da2cdd4e3c397ee2b6296c0b7b2e9
sha256
881391d4cd76f8398cf6835280a79b6f4e3c2974aa75cc260e3ddcd5282dc41a
sha512
3559013cd51a0cbb1136ffee98ab170c00b72632c40b5c2ee61eeef743155b5ca45c77fb03e28689415ebe5802b28b016a87df92d7cf8f1582d6451a86560781
ripemd-160
49808c884b23f2af84e855ee959ea160ab2d2cfe
Diameter
41983924
Circumference
131896387.20727
Area
1.3843819740962E+15
Volume
3.8747858391616E+22
Surface area
5.5375278963847E+15
Circumference
131896387.20727
Perimeter
83967848
Area
440662468609444
Diagonal
29687117.361221
Surface area
2643974811656664
Volume
9.2503697958756E+21
Space diagonal
36359144.734555
Perimeter
62975886
Area
1.9081244615507E+14
Altitude
18179572.367278
Surface area
1.9081244615507E+14
Volume
1.0901665351911E+21
Height
9895705.7870735