21131854 is an even 8-digits composite number following 21131853
and preceding 21131855 . In scientific notation, it is written as 2.1131854 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 10532280 positive integers (up to 21131854) that are relatively prime to 21131854.
21131854 has 8 divisors, whose sum is 31798728
The reverse of 21131854 is 45813112
Previous prime number is 317
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million one hundred thirty-one thousand eight hundred fifty-four
Scientific notation
2.1131854 × 10^7
Engineering notation
2.1131854 × 10^6
Prime Factorization
2 × 317 × 33331
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21131854
Product of the distinct prime numbers
The prime factorization of 21131854 is 2 × 317 × 33331.
Since it has a total of 3 prime factors.
8 , 5 , 87 , 96 , 561 , 722 , 2774 , 2266 , 97979 , 88821 , 413283 , 202103 , 2112114 , 3339103 , 14831996 , 87320456 , 39657694 , 157608139 , 9040926175 , 7518695970
n×2
42263708
n×3
63395562
n×4
84527416
n×5
105659270
n÷2
10565927
n÷3
7043951.3333333
n÷3
5282963.5
n÷5
4226370.8
n2
446555253477316
n3
9.4365404194156E+21
n4
1.9941159440819E+29
n5
4.2139366989411E+36
2 √n
4596.9396341479
3 √n
276.46863427373
4 √n
67.800734761121
5 √n
29.173431812529
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
-21131853
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 21131854 can be divided by 8 positive divisors.
The sum of these divisors (counting 21131854) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100111001001001110
3
Ternary
1110202121110021
4
Quaternary
1100213021032
5
Quinary
20402204404
6
Senary
2032532354
8
Octal
120471116
10
Decimal
21131854
12
Duodecimal
70b10ba
16
Hexadecimal
142724e
20
Vigesimal
6c19ce
36
Base36
ckxfy
md5
9fc268cde34f9ee4624dca4446426083
sha1
372ebb47631f95f279c0df07be533e49390f97f0
sha256
52d60f72b19d93e20c258812af875c040e2649c1958e149a2712241ee9df060b
sha512
5415b20deec8648d10277315f04fb25d5e71a288f73c717b4668dd398dfbf774177b43ec1ea71f70d07afda1c1908a86cce13d587ea27adde347b012366ec777
ripemd-160
1ea9614573c9a2f792a4f7857769c0149882bc54
Diameter
42263708
Circumference
132775354.56626
Area
1.4028947037463E+15
Volume
3.9527688075919E+22
Surface area
5.6115788149851E+15
Circumference
132775354.56626
Perimeter
84527416
Area
446555253477316
Diagonal
29884954.524888
Surface area
2679331520863896
Volume
9.4365404194156E+21
Space diagonal
36601444.786128
Perimeter
63395562
Area
1.9336409685238E+14
Altitude
18300722.393064
Surface area
1.9336409685238E+14
Volume
1.112106953585E+21
Height
9961651.508296