21769891 is an odd 8-digits composite number following 21769890
and preceding 21769892 . In scientific notation, it is written as 2.1769891 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 17471520 positive integers (up to 21769891) that are relatively prime to 21769891.
21769891 has 16 divisors, whose sum is 26691840
The reverse of 21769891 is 19896712
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-one million seven hundred sixty-nine thousand eight hundred ninety-one
Scientific notation
2.1769891 × 10^7
Engineering notation
2.1769891 × 10^6
Prime Factorization
11 × 13 × 23 × 6619
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21769891
Product of the distinct prime numbers
The prime factorization of 21769891 is 11 × 13 × 23 × 6619.
Since it has a total of 4 prime factors.
6 , 9 , 96 , 72 , 496 , 467 , 4402 , 9295 , 89 , 15802 , 107764 , 964030 , 845325 , 1614573 , 94687677 , 34788025 , 114989334 , 222332988 , 4254751649 , 1960810723
n×2
43539782
n×3
65309673
n×4
87079564
n×5
108849455
n÷2
10884945.5
n÷3
7256630.3333333
n÷3
5442472.75
n÷5
4353978.2
n2
473928154151881
n3
1.0317364257718E+22
n4
2.2460789529781E+29
n5
4.8896893983727E+36
2 √n
4665.8215782432
3 √n
279.22357605175
4 √n
68.306819412437
5 √n
29.34750943496
1 , 11 , 13 , 23 , 143 , 253 , 299 , 3289 , 6619 , 72809 , 86047 , 152237 , 946517 , 1674607 , 1979081 , 21769891
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21769890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21769891 can be divided by 16 positive divisors.
The sum of these divisors (counting 21769891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011000010111010100011
3
Ternary
1111222000200021
4
Quaternary
1103002322203
5
Quinary
21033114031
6
Senary
2054334311
8
Octal
123027243
10
Decimal
21769891
12
Duodecimal
735a397
16
Hexadecimal
14c2ea3
20
Vigesimal
6g14eb
36
Base36
cylr7
md5
56e76a25bf3b2c14ef4c428b61a1e6c2
sha1
59055896ea9cbb6bb598d0981ff6fd41c998a090
sha256
e709373316f525f017d166898938ec53ed96cf4e7f1771d63e961ac6bbc1bf98
sha512
b6b46baf114c76726b4df3ab97e2b2cfd0b282d446ee36ed3a07a4a704263a7ee099cd412da06da1ca879f8959ee1e11fbbef9a41a740376556593bdad22b3bf
ripemd-160
3f47d6330210efee3b11cc0a5f28138f05b7a579
Diameter
43539782
Circumference
136784259.2701
Area
1.4888892074129E+15
Volume
4.3217274341941E+22
Surface area
5.9555568296517E+15
Circumference
136784259.2701
Perimeter
87079564
Area
473928154151881
Diagonal
30787275.103584
Surface area
2843568924911286
Volume
1.0317364257718E+22
Space diagonal
37706557.287236
Perimeter
65309673
Area
2.052169105321E+14
Altitude
18853278.643618
Surface area
2.052169105321E+14
Volume
1.215913038434E+21
Height
10262425.034528