21691842 is an even 8-digits composite number following 21691841
and preceding 21691843 . In scientific notation, it is written as 2.1691842 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 7035120 positive integers (up to 21691842) that are relatively prime to 21691842.
21691842 has 16 divisors, whose sum is 44556672
The reverse of 21691842 is 24819612
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million six hundred ninety-one thousand eight hundred forty-two
Scientific notation
2.1691842 × 10^7
Engineering notation
2.1691842 × 10^6
Prime Factorization
2 × 3 × 37 × 97711
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21691842
Product of the distinct prime numbers
The prime factorization of 21691842 is 2 × 3 × 37 × 97711.
Since it has a total of 4 prime factors.
5 , 3 , 20 , 64 , 177 , 971 , 5396 , 5272 , 30283 , 66851 , 952473 , 237977 , 6315375 , 6118090 , 83149493 , 61409839 , 698847939 , 640867737 , 780180447 , 5890475373
n×2
43383684
n×3
65075526
n×4
86767368
n×5
108459210
n÷2
10845921
n÷3
7230614
n÷3
5422960.5
n÷5
4338368.4
n2
470536009352964
n3
1.0206792770195E+22
n4
2.2140413609781E+29
n5
4.8026635383802E+36
2 √n
4657.4501607639
3 √n
278.88948745541
4 √n
68.245513850831
5 √n
29.326435965614
1 , 2 , 3 , 6 , 37 , 74 , 111 , 222 , 97711 , 195422 , 293133 , 586266 , 3615307 , 7230614 , 10845921 , 21691842
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
-21691841
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 21691842 can be divided by 16 positive divisors.
The sum of these divisors (counting 21691842) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010101111110111000010
3
Ternary
1111211001121120
4
Quaternary
1102233313002
5
Quinary
21023114332
6
Senary
2052533110
8
Octal
122576702
10
Decimal
21691842
12
Duodecimal
7321196
16
Hexadecimal
14afdc2
20
Vigesimal
6fb9c2
36
Base36
cwxj6
md5
105b72e900cca79cf69289fce685e89d
sha1
b4926278b3cab1a4201e3e0aaf2ce5fe65500c18
sha256
4c3e905d0f41aa8cec234917b310faccb676a00752852b5d5248a4594ae03e5c
sha512
9a7e11267670b79a2ad3082c4a12967794d65bbab20e9992e2fa5a0607c7831fe4a72714e60f3f616fc5c051757da15aa46dca61c33d3f6a69379c309b0ae7e6
ripemd-160
7dac14bb26bd67a2a27a84785ac6987e3fc110f7
Diameter
43383684
Circumference
136293862.94006
Area
1.4782324702327E+15
Volume
4.2754113578077E+22
Surface area
5.9129298809309E+15
Circumference
136293862.94006
Perimeter
86767368
Area
470536009352964
Diagonal
30676897.149254
Surface area
2823216056117784
Volume
1.0206792770195E+22
Space diagonal
37571372.453756
Perimeter
65075526
Area
2.0374806874751E+14
Altitude
18785686.226878
Surface area
2.0374806874751E+14
Volume
1.2028820636618E+21
Height
10225632.383085