21691874 is an even 8-digits composite number following 21691873
and preceding 21691875 . In scientific notation, it is written as 2.1691874 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 10845936 positive integers (up to 21691874) that are relatively prime to 21691874.
21691874 has 4 divisors, whose sum is 32537814
The reverse of 21691874 is 47819612
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million six hundred ninety-one thousand eight hundred seventy-four
Scientific notation
2.1691874 × 10^7
Engineering notation
2.1691874 × 10^6
Prime Factorization
2 × 10845937
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21691874
Product of the distinct prime numbers
The prime factorization of 21691874 is 2 × 10845937.
Since it has a total of 2 prime factors.
10 , 6 , 25 , 86 , 25 , 132 , 1482 , 5874 , 72459 , 72656 , 407954 , 724185 , 6461019 , 8594213 , 8937279 , 2668754 , 190651664 , 441229873 , 853553002 , 1459169218
n×2
43383748
n×3
65075622
n×4
86767496
n×5
108459370
n÷2
10845937
n÷3
7230624.6666667
n÷3
5422968.5
n÷5
4338374.8
n2
470537397631876
n3
1.0206837941719E+22
n4
2.2140544257018E+29
n5
4.8026989631465E+36
2 √n
4657.4535961188
3 √n
278.88962459543
4 √n
68.245539019915
5 √n
29.326444618134
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
-21691873
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 21691874 can be divided by 4 positive divisors.
The sum of these divisors (counting 21691874) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101111110111100010
3
Ternary
1111211001122202
4
Quaternary
1102233313202
5
Quinary
21023114444
6
Senary
2052533202
8
Octal
122576742
10
Decimal
21691874
12
Duodecimal
7321202
16
Hexadecimal
14afde2
20
Vigesimal
6fb9de
36
Base36
cwxk2
md5
d4c07233a7074e6ba31a922696807036
sha1
72b2a630310965b1937dbce2215976e78ab1c34e
sha256
fa46722f97f5c072c0665dd8d718f3bd7c1e2940f8fec6a389fc2fbda1704635
sha512
1f25b622ee5cd0a527a6fdabc61d8e093b9d49764bbb824ae900a7a7ab049f698df8a9976200f8f639df477d4446ca7c90cba7ec2ada38beca94e481a4666c5a
ripemd-160
fa46e49a4871cc81d823096e2475b26d1047e41d
Diameter
43383748
Circumference
136294064.00199
Area
1.4782368316396E+15
Volume
4.2754302792113E+22
Surface area
5.9129473265582E+15
Circumference
136294064.00199
Perimeter
86767496
Area
470537397631876
Diagonal
30676942.404088
Surface area
2823224385791256
Volume
1.0206837941719E+22
Space diagonal
37571427.879382
Perimeter
65075622
Area
2.0374866988991E+14
Altitude
18785713.939691
Surface area
2.0374866988991E+14
Volume
1.2028873871769E+21
Height
10225647.468029