20993861 is an odd 8-digits composite number following 20993860
and preceding 20993862 . In scientific notation, it is written as 2.0993861 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 16936128 positive integers (up to 20993861) that are relatively prime to 20993861.
20993861 has 8 divisors, whose sum is 25404480
The reverse of 20993861 is 16839902
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty million nine hundred ninety-three thousand eight hundred sixty-one
Scientific notation
2.0993861 × 10^7
Engineering notation
2.0993861 × 10^6
Prime Factorization
7 × 17 × 176419
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20993861
Product of the distinct prime numbers
The prime factorization of 20993861 is 7 × 17 × 176419.
Since it has a total of 3 prime factors.
5 , 1 , 80 , 94 , 66 , 714 , 1801 , 5615 , 93283 , 39637 , 688413 , 272774 , 6150069 , 4317121 , 16891079 , 55988804 , 3331372 , 206388283 , 7299399089 , 9727050129
n×2
41987722
n×3
62981583
n×4
83975444
n×5
104969305
n÷2
10496930.5
n÷3
6997953.6666667
n÷3
5248465.25
n÷5
4198772.2
n2
440742199687321
n3
9.2528804770699E+21
n4
1.9425368658522E+29
n5
4.0781348949076E+36
2 √n
4581.9058261819
3 √n
275.86553083461
4 √n
67.689776378578
5 √n
29.135230847084
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20993860
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20993861 can be divided by 8 positive divisors.
The sum of these divisors (counting 20993861) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000101011101000101
3
Ternary
1110111121011102
4
Quaternary
1100011131011
5
Quinary
20333300421
6
Senary
2025545445
8
Octal
120053505
10
Decimal
20993861
12
Duodecimal
7045285
16
Hexadecimal
1405745
20
Vigesimal
6b44d1
36
Base36
chyyt
md5
f5216c1e726e7e0e9967cf37523d2768
sha1
c42643fd95de4d8c6123773807e80810542a354c
sha256
9d7bd6e156ad3730973a8589a0ada89f092b75057d3253bcd0146c17a67de7d7
sha512
c7aea45576eb9fff1b3652911d02dfc9a483134efca37cb7326309f61f2b21385e9820cb890163b730e7f7fee337c97820d211d85f6cb1d0e75c45dbd31a8de0
ripemd-160
951df5a5ef0743468c2eeaad428c33d2cc0d8cec
Diameter
41987722
Circumference
131908318.97617
Area
1.3846324566647E+15
Volume
3.8758375108409E+22
Surface area
5.5385298266588E+15
Circumference
131908318.97617
Perimeter
83975444
Area
440742199687321
Diagonal
29689802.952776
Surface area
2644453198123926
Volume
9.2528804770699E+21
Space diagonal
36362433.899039
Perimeter
62981583
Area
1.9084697072453E+14
Altitude
18181216.949519
Surface area
1.9084697072453E+14
Volume
1.0904624218075E+21
Height
9896600.9842585