21689911 is an odd 8-digits composite number following 21689910
and preceding 21689912 . In scientific notation, it is written as 2.1689911 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 21615592 positive integers (up to 21689911) that are relatively prime to 21689911.
21689911 has 4 divisors, whose sum is 21764232
The reverse of 21689911 is 11998612
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million six hundred eighty-nine thousand nine hundred eleven
Scientific notation
2.1689911 × 10^7
Engineering notation
2.1689911 × 10^6
Prime Factorization
293 × 74027
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21689911
Product of the distinct prime numbers
The prime factorization of 21689911 is 293 × 74027.
Since it has a total of 2 prime factors.
4 , 3 , 92 , 51 , 440 , 725 , 2236 , 2160 , 10661 , 72291 , 29083 , 73548 , 3657241 , 4732872 , 83484677 , 90611420 , 318590626 , 443349810 , 2359473363 , 6053406723
n×2
43379822
n×3
65069733
n×4
86759644
n×5
108449555
n÷2
10844955.5
n÷3
7229970.3333333
n÷3
5422477.75
n÷5
4337982.2
n2
470452239187921
n3
1.0204067197737E+22
n4
2.2132530935693E+29
n5
4.8005262619993E+36
2 √n
4657.2428538782
3 √n
278.88121166243
4 √n
68.243995002332
5 √n
29.325913821258
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
-21689910
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 21689911 can be divided by 4 positive divisors.
The sum of these divisors (counting 21689911) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101111011000110111
3
Ternary
1111210221222001
4
Quaternary
1102233120313
5
Quinary
21023034121
6
Senary
2052520131
8
Octal
122573067
10
Decimal
21689911
12
Duodecimal
7320047
16
Hexadecimal
14af637
20
Vigesimal
6fb4fb
36
Base36
cww1j
md5
1deddb920fbbd9da9325744bcae40fd8
sha1
3b66d33f3f9942bedd522e33abcd078727b6b308
sha256
0def3e956659b3b2705d63c8aa3458bb8657d70a7956ec92089f3446314800da
sha512
9fe226f8a68fa7c68ed25a728775a68aebb09143fd6b9690965b35137553c282d3adfba13ccf17e087015f6fddb5393f0ed4ea37028ce151211433b597b1ca9b
ripemd-160
eb171ebdd72bc759b6525b28503680090412757c
Diameter
43379822
Circumference
136281730.10923
Area
1.4779692984976E+15
Volume
4.2742696726862E+22
Surface area
5.9118771939906E+15
Circumference
136281730.10923
Perimeter
86759644
Area
470452239187921
Diagonal
30674166.302865
Surface area
2822713435127526
Volume
1.0204067197737E+22
Space diagonal
37568027.863647
Perimeter
65069733
Area
2.0371179520201E+14
Altitude
18784013.931824
Surface area
2.0371179520201E+14
Volume
1.2025608518671E+21
Height
10224722.100955