21131863 is an odd 8-digits composite number following 21131862
and preceding 21131864 . In scientific notation, it is written as 2.1131863 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20450160 positive integers (up to 21131863) that are relatively prime to 21131863.
21131863 has 4 divisors, whose sum is 21813568
The reverse of 21131863 is 36813112
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million one hundred thirty-one thousand eight hundred sixty-three
Scientific notation
2.1131863 × 10^7
Engineering notation
2.1131863 × 10^6
Prime Factorization
31 × 681673
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21131863
Product of the distinct prime numbers
The prime factorization of 21131863 is 31 × 681673.
Since it has a total of 2 prime factors.
2 , 4 , 77 , 13 , 192 , 499 , 9365 , 779 , 66892 , 44477 , 39820 , 605152 , 1357876 , 6027622 , 97307957 , 17905196 , 922305257 , 13411015 , 211885588 , 8796861495
n×2
42263726
n×3
63395589
n×4
84527452
n×5
105659315
n÷2
10565931.5
n÷3
7043954.3333333
n÷3
5282965.75
n÷5
4226372.6
n2
446555633850769
n3
9.4365524764126E+21
n4
1.9941193412386E+29
n5
4.2139456724705E+36
2 √n
4596.94061306
3 √n
276.46867352281
4 √n
67.800741980158
5 √n
29.173434297506
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
-21131862
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 21131863 can be divided by 4 positive divisors.
The sum of these divisors (counting 21131863) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100111001001010111
3
Ternary
1110202121110121
4
Quaternary
1100213021113
5
Quinary
20402204423
6
Senary
2032532411
8
Octal
120471127
10
Decimal
21131863
12
Duodecimal
70b1107
16
Hexadecimal
1427257
20
Vigesimal
6c19d3
36
Base36
ckxg7
md5
8464e10d5e1a291a45ca4f8c3b61ea03
sha1
313b973ff66d62c93e203dda1090a50aa7856ddf
sha256
bf0a776ef9352d4e20143f8866a2d971bc3a772d262c1939a4a22f77d89079f6
sha512
15966cf93deb83cbeb61d168206260b06abdc609e501b1c5b40ef78395a0e249344f13c78d8bb12e50204c0d512bf3bd0867f4b7282617f91eb4c339685c76c4
ripemd-160
ccba9e0af2844cecffc424a60ebfa5861b3f4c5c
Diameter
42263726
Circumference
132775411.11493
Area
1.4028958987247E+15
Volume
3.952773858015E+22
Surface area
5.6115835948988E+15
Circumference
132775411.11493
Perimeter
84527452
Area
446555633850769
Diagonal
29884967.25281
Surface area
2679333803104614
Volume
9.4365524764126E+21
Space diagonal
36601460.374585
Perimeter
63395589
Area
1.9336426155891E+14
Altitude
18300730.187292
Surface area
1.9336426155891E+14
Volume
1.1121083745157E+21
Height
9961655.7509367