21887841 is an odd 8-digits composite number following 21887840
and preceding 21887842 . In scientific notation, it is written as 2.1887841 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 14498640 positive integers (up to 21887841) that are relatively prime to 21887841.
21887841 has 8 divisors, whose sum is 29370304
The reverse of 21887841 is 14878812
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million eight hundred eighty-seven thousand eight hundred forty-one
Scientific notation
2.1887841 × 10^7
Engineering notation
2.1887841 × 10^6
Prime Factorization
3 × 157 × 46471
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21887841
Product of the distinct prime numbers
The prime factorization of 21887841 is 3 × 157 × 46471.
Since it has a total of 3 prime factors.
9 , 5 , 79 , 49 , 406 , 914 , 5967 , 8707 , 85884 , 69907 , 653388 , 117964 , 6148398 , 5756884 , 76445585 , 57548687 , 688700307 , 74385599 , 663367204 , 1949612526
n×2
43775682
n×3
65663523
n×4
87551364
n×5
109439205
n÷2
10943920.5
n÷3
7295947
n÷3
5471960.25
n÷5
4377568.2
n2
479077583641281
n3
1.0485973977405E+22
n4
2.2951533114757E+29
n5
5.0235950752203E+36
2 √n
4678.444292711
3 √n
279.72694894805
4 √n
68.399154181254
5 √n
29.379241896458
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
-21887840
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 21887841 can be divided by 8 positive divisors.
The sum of these divisors (counting 21887841) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011011111101101100001
3
Ternary
1112012000110210
4
Quaternary
1103133231201
5
Quinary
21100402331
6
Senary
2101044333
8
Octal
123375541
10
Decimal
21887841
12
Duodecimal
73b66a9
16
Hexadecimal
14dfb61
20
Vigesimal
6gfjc1
36
Base36
d14rl
md5
495cbbfb223f7bee0f2c44afa13de174
sha1
f0a04ab66890039922bc2b1198f555145241089d
sha256
e419c302e66105805868256397103c6c524911874352c36c1f372e952b3f6b80
sha512
8d22d82d2cd5ae514f27a7043a4c61224b6307dbeb60f73b821710a6a37c35162eccdb5f9c1e1a0768497342e95ee82a8386416f981f5aef31872a4647104cae
ripemd-160
c15800b1c407ecef6bfc4d3ff6ad15f3fb4d93bd
Diameter
43775682
Circumference
137525360.97708
Area
1.505066617267E+15
Volume
4.3923545084197E+22
Surface area
6.020266469068E+15
Circumference
137525360.97708
Perimeter
87551364
Area
479077583641281
Diagonal
30954081.593266
Surface area
2874465501847686
Volume
1.0485973977405E+22
Space diagonal
37910852.679989
Perimeter
65663523
Area
2.0744667890851E+14
Altitude
18955426.339995
Surface area
2.0744667890851E+14
Volume
1.2357838844614E+21
Height
10318027.197755