21689966 is an even 8-digits composite number following 21689965
and preceding 21689967 . In scientific notation, it is written as 2.1689966 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 8 positive divisors.
There are 10373440 positive integers (up to 21689966) that are relatively prime to 21689966.
21689966 has 8 divisors, whose sum is 33949584
The reverse of 21689966 is 66998612
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty-one million six hundred eighty-nine thousand nine hundred sixty-six
Scientific notation
2.1689966 × 10^7
Engineering notation
2.1689966 × 10^6
Prime Factorization
2 × 23 × 471521
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21689966
Product of the distinct prime numbers
The prime factorization of 21689966 is 2 × 23 × 471521.
Since it has a total of 3 prime factors.
3 , 8 , 22 , 47 , 31 , 212 , 8031 , 1522 , 44518 , 38542 , 654102 , 359751 , 8259380 , 4715024 , 4130040 , 65398942 , 439281062 , 747633423 , 713337863 , 8689704375
n×2
43379932
n×3
65069898
n×4
86759864
n×5
108449830
n÷2
10844983
n÷3
7229988.6666667
n÷3
5422491.5
n÷5
4337993.2
n2
470454625081156
n3
1.0204144822553E+22
n4
2.2132755426025E+29
n5
4.800587126768E+36
2 √n
4657.2487586557
3 √n
278.88144738575
4 √n
68.244038264567
5 √n
29.325928693828
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
-21689965
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 21689966 can be divided by 8 positive divisors.
The sum of these divisors (counting 21689966) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010101111011001101110
3
Ternary
1111210222001002
4
Quaternary
1102233121232
5
Quinary
21023034331
6
Senary
2052520302
8
Octal
122573156
10
Decimal
21689966
12
Duodecimal
7320092
16
Hexadecimal
14af66e
20
Vigesimal
6fb4i6
36
Base36
cww32
md5
f8394db36117205270b30f2b0f6d3db7
sha1
edf8e01b989a33bc9b3fae18bcbec09a67f16a31
sha256
9c280fe0f9c81bbc93ab581b3b5f121ff900936ee2bcf3ace6aae92d494650f4
sha512
2d972967005a776c6fe97382569f4631415d062dd6681bbf18f792e5320f86fc6ca3a205560e18be054d0499623127e2b4a1c0972e01b9c2ef5212e76efa1648
ripemd-160
86c5b5ea5b68ce0fe879d13567ac77bf7bb0390a
Diameter
43379932
Circumference
136282075.68442
Area
1.4779767940023E+15
Volume
4.2743021880932E+22
Surface area
5.9119071760092E+15
Circumference
136282075.68442
Perimeter
86759864
Area
470454625081156
Diagonal
30674244.084611
Surface area
2822727750486936
Volume
1.0204144822553E+22
Space diagonal
37568123.126441
Perimeter
65069898
Area
2.0371282832408E+14
Altitude
18784061.563221
Surface area
2.0371282832408E+14
Volume
1.2025700000395E+21
Height
10224748.028204