21887924 is an even 8-digits composite number following 21887923
and preceding 21887925 . In scientific notation, it is written as 2.1887924 × 10^7.
The sum of its digits is 41. It has a total of 5 prime factors and 24 positive divisors.
There are 10009440 positive integers (up to 21887924) that are relatively prime to 21887924.
21887924 has 24 divisors, whose sum is 41714400
The reverse of 21887924 is 42978812
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million eight hundred eighty-seven thousand nine hundred twenty-four
Scientific notation
2.1887924 × 10^7
Engineering notation
2.1887924 × 10^6
Prime Factorization
2 × 2 × 19 × 29 × 9931
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10943962
Product of the distinct prime numbers
The prime factorization of 21887924 is 2 × 2 × 19 × 29 × 9931.
Since it has a total of 5 prime factors.
1 , 3 , 64 , 70 , 9 , 49 , 355 , 6772 , 27669 , 44041 , 807795 , 610862 , 3396311 , 2811342 , 1042910 , 61352372 , 134795736 , 733470940 , 9456551865 , 7316352741
n×2
43775848
n×3
65663772
n×4
87551696
n×5
109439620
n÷2
10943962
n÷3
7295974.6666667
n÷3
5471981
n÷5
4377584.8
n2
479081217029776
n3
1.0486093268175E+22
n4
2.2951881251073E+29
n5
5.0236903248051E+36
2 √n
4678.4531631726
3 √n
279.72730252803
4 √n
68.399219024581
5 √n
29.379264177992
1 , 2 , 4 , 19 , 29 , 38 , 58 , 76 , 116 , 551 , 1102 , 2204 , 9931 , 19862 , 39724 , 188689 , 287999 , 377378 , 575998 , 754756 , 1151996 , 5471981 , 10943962 , 21887924
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21887923
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21887924 can be divided by 24 positive divisors.
The sum of these divisors (counting 21887924) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010011011111101110110100
3
Ternary
1112012000120212
4
Quaternary
1103133232310
5
Quinary
21100403144
6
Senary
2101044552
8
Octal
123375664
10
Decimal
21887924
12
Duodecimal
73b6758
16
Hexadecimal
14dfbb4
20
Vigesimal
6gfjg4
36
Base36
d14tw
md5
92f928887e9c9ad7de6d9dfa72b6e59d
sha1
bae51ec2794ec4a698db8022a9a43f734004263a
sha256
a34b4b83edfab28a924cb02b0fad050e9abca037b82dbdff691d2534274190f2
sha512
019c533e736a133bb742faad9c4ad971d47bc492dfe4721f8bafa9802642eff9640eac6581b913d584e543ed5e52a37a7624758201a235a3c1fadbe4d7d7ab67
ripemd-160
8e5a8d6ca4bb6e09c5d00f1acb7b8248db7d0f83
Diameter
43775848
Circumference
137525882.48146
Area
1.5050780318936E+15
Volume
4.3924044768209E+22
Surface area
6.0203121275744E+15
Circumference
137525882.48146
Perimeter
87551696
Area
479081217029776
Diagonal
30954198.972992
Surface area
2874487302178656
Volume
1.0486093268175E+22
Space diagonal
37910996.440206
Perimeter
65663772
Area
2.0744825221188E+14
Altitude
18955498.220103
Surface area
2.0744825221188E+14
Volume
1.2357979430136E+21
Height
10318066.324331