21749938 is an even 8-digits composite number following 21749937
and preceding 21749939 . In scientific notation, it is written as 2.1749938 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 9321396 positive integers (up to 21749938) that are relatively prime to 21749938.
21749938 has 8 divisors, whose sum is 37285632
The reverse of 21749938 is 83994712
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
twenty-one million seven hundred forty-nine thousand nine hundred thirty-eight
Scientific notation
2.1749938 × 10^7
Engineering notation
2.1749938 × 10^6
Prime Factorization
2 × 7 × 1553567
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21749938
Product of the distinct prime numbers
The prime factorization of 21749938 is 2 × 7 × 1553567.
Since it has a total of 3 prime factors.
7 , 3 , 9 , 41 , 36 , 222 , 3681 , 8237 , 170 , 15430 , 575054 , 625009 , 4391358 , 2517954 , 82411864 , 70605558 , 135058887 , 857869737 , 1021529159 , 5453151427
n×2
43499876
n×3
65249814
n×4
86999752
n×5
108749690
n÷2
10874969
n÷3
7249979.3333333
n÷3
5437484.5
n÷5
4349987.6
n2
473059803003844
n3
1.0289021385626E+22
n4
2.2378557721804E+29
n5
4.8673224297865E+36
2 √n
4663.682879442
3 √n
279.13824334761
4 √n
68.291162528119
5 √n
29.342127821853
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
-21749937
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 21749938 can be divided by 8 positive divisors.
The sum of these divisors (counting 21749938) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010111110000010110010
3
Ternary
1111221000022021
4
Quaternary
1102332002302
5
Quinary
21031444223
6
Senary
2054102054
8
Octal
122760262
10
Decimal
21749938
12
Duodecimal
734a92a
16
Hexadecimal
14be0b2
20
Vigesimal
6fiegi
36
Base36
cy6cy
md5
69e17ec9c051d36817fe564ef790e052
sha1
d5bc37eacf85deb27308eccbb867b2e7773a597c
sha256
3978c2068dfe7bb5f93f5d72797eec325c1086f7bbbf7875ac6019f38f740d63
sha512
6e3f5c21306280b6bae1744eab91ac7bf266ec08b895967d537fc1ca9c58633eee8d0eed73e3c9723702cb56c708f9737c756e2c2426b047b495c25cecdcb88e
ripemd-160
431dc67d3ae42a9387fc337f7ea621cd777889a3
Diameter
43499876
Circumference
136658890.87367
Area
1.4861612018255E+15
Volume
4.3098551996947E+22
Surface area
5.944644807302E+15
Circumference
136658890.87367
Perimeter
86999752
Area
473059803003844
Diagonal
30759057.300374
Surface area
2838358818023064
Volume
1.0289021385626E+22
Space diagonal
37671997.677473
Perimeter
65249814
Area
2.048409034553E+14
Altitude
18835998.838737
Surface area
2.048409034553E+14
Volume
1.2125727989249E+21
Height
10253019.100125