20991037 is an odd 8-digits composite number following 20991036
and preceding 20991038 . In scientific notation, it is written as 2.0991037 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 20977120 positive integers (up to 20991037) that are relatively prime to 20991037.
20991037 has 4 divisors, whose sum is 21004956
The reverse of 20991037 is 73019902
Previous prime number is 1721
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million nine hundred ninety-one thousand thirty-seven
Scientific notation
2.0991037 × 10^7
Engineering notation
2.0991037 × 10^6
Prime Factorization
1721 × 12197
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20991037
Product of the distinct prime numbers
The prime factorization of 20991037 is 1721 × 12197.
Since it has a total of 2 prime factors.
4 , 10 , 83 , 74 , 797 , 37 , 6285 , 7517 , 5396 , 29571 , 302373 , 239986 , 7047989 , 9258333 , 84927724 , 63271204 , 96389554 , 314073817 , 4523828101 , 9150074270
n×2
41982074
n×3
62973111
n×4
83964148
n×5
104955185
n÷2
10495518.5
n÷3
6997012.3333333
n÷3
5247759.25
n÷5
4198207.4
n2
440623634335369
n3
9.2491470114082E+21
n4
1.9414918713491E+29
n5
4.0753927706688E+36
2 √n
4581.5976471096
3 √n
275.85316088206
4 √n
67.687499932481
5 √n
29.134446976796
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
-20991036
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 20991037 can be divided by 4 positive divisors.
The sum of these divisors (counting 20991037) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000000100110000111101
3
Ternary
1110111110021211
4
Quaternary
1100010300331
5
Quinary
20333203122
6
Senary
2025524421
8
Octal
120046075
10
Decimal
20991037
12
Duodecimal
7043711
16
Hexadecimal
1404c3d
20
Vigesimal
6b3hbh
36
Base36
chwsd
md5
711901ddde2cc17112552719053a8609
sha1
6b237fadb90287bd00f0c6f3c5cd53fbcd7ca67d
sha256
e523e7fa5bc805e22e01d1969fcb1494ac8f558f5d90860533298035c50dbf6a
sha512
b3f2e896a8e530f990f3d635925f80a292a4ee4807d8ac1a59827db37b1d5712e1fa9714415bde607d63a876fe89328a15f9a8fc72f2de25cb14310f31f50eed
ripemd-160
5af3e87e066642b120169bcb9edbeaa3866bcc3c
Diameter
41982074
Circumference
131890575.26086
Area
1.384259972626E+15
Volume
3.8742736404016E+22
Surface area
5.5370398905041E+15
Circumference
131890575.26086
Perimeter
83964148
Area
440623634335369
Diagonal
29685809.213675
Surface area
2643741806012214
Volume
9.2491470114082E+21
Space diagonal
36357542.587558
Perimeter
62973111
Area
1.9079563042113E+14
Altitude
18178771.293779
Surface area
1.9079563042113E+14
Volume
1.0900224286597E+21
Height
9895269.7378918