21131869 is an odd 8-digits composite number following 21131868
and preceding 21131870 . In scientific notation, it is written as 2.1131869 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 19210780 positive integers (up to 21131869) that are relatively prime to 21131869.
21131869 has 4 divisors, whose sum is 23052960
The reverse of 21131869 is 96813112
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million one hundred thirty-one thousand eight hundred sixty-nine
Scientific notation
2.1131869 × 10^7
Engineering notation
2.1131869 × 10^6
Prime Factorization
11 × 1921079
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21131869
Product of the distinct prime numbers
The prime factorization of 21131869 is 11 × 1921079.
Since it has a total of 2 prime factors.
3 , 4 , 94 , 93 , 971 , 515 , 8567 , 5681 , 70175 , 84248 , 129849 , 812616 , 3106616 , 4789767 , 60818590 , 62988762 , 814888557 , 652947177 , 5119122428 , 9517307204
n×2
42263738
n×3
63395607
n×4
84527476
n×5
105659345
n÷2
10565934.5
n÷3
7043956.3333333
n÷3
5282967.25
n÷5
4226373.8
n2
446555887433161
n3
9.4365605144163E+21
n4
1.9941216060122E+29
n5
4.2139516548319E+36
2 √n
4596.9412656679
3 √n
276.46869968885
4 √n
67.800746792848
5 √n
29.173435954157
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
-21131868
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 21131869 can be divided by 4 positive divisors.
The sum of these divisors (counting 21131869) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100111001001011101
3
Ternary
1110202121110211
4
Quaternary
1100213021131
5
Quinary
20402204434
6
Senary
2032532421
8
Octal
120471135
10
Decimal
21131869
12
Duodecimal
70b1111
16
Hexadecimal
142725d
20
Vigesimal
6c19d9
36
Base36
ckxgd
md5
c105b2578ed75247843700c5658ddd36
sha1
451448dca0fbb79772afdc2cc4c98886cbcbe714
sha256
6b67792787de71eee76f34da3f132f08198752df6841f4228e46673d7f4f30f8
sha512
f06ac41a01440fed62a47b6d1ae0885c48f553379741c2affe9719e1b248a52a84e279aab794ea0b3d246f8f7d4862849c2938bd5a355829055f1fb1b2ebaf01
ripemd-160
5c6a649fe0f435901109103c02485267cfccc110
Diameter
42263738
Circumference
132775448.81404
Area
1.4028966953773E+15
Volume
3.9527772249661E+22
Surface area
5.6115867815092E+15
Circumference
132775448.81404
Perimeter
84527476
Area
446555887433161
Diagonal
29884975.738092
Surface area
2679335324598966
Volume
9.4365605144163E+21
Space diagonal
36601470.76689
Perimeter
63395607
Area
1.9336437136331E+14
Altitude
18300735.383445
Surface area
1.9336437136331E+14
Volume
1.1121093218035E+21
Height
9961658.5793639