21887842 is an even 8-digits composite number following 21887841
and preceding 21887843 . In scientific notation, it is written as 2.1887842 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 10943920 positive integers (up to 21887842) that are relatively prime to 21887842.
21887842 has 4 divisors, whose sum is 32831766
The reverse of 21887842 is 24878812
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty-one million eight hundred eighty-seven thousand eight hundred forty-two
Scientific notation
2.1887842 × 10^7
Engineering notation
2.1887842 × 10^6
Prime Factorization
2 × 10943921
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21887842
Product of the distinct prime numbers
The prime factorization of 21887842 is 2 × 10943921.
Since it has a total of 2 prime factors.
4 , 5 , 95 , 16 , 176 , 557 , 4035 , 3011 , 52203 , 63691 , 773075 , 635555 , 5055966 , 5288154 , 31571126 , 71106854 , 712155220 , 327412860 , 7765753354 , 1063617841
n×2
43775684
n×3
65663526
n×4
87551368
n×5
109439210
n÷2
10943921
n÷3
7295947.3333333
n÷3
5471960.5
n÷5
4377568.4
n2
479077627416964
n3
1.0485975414637E+22
n4
2.2951537309147E+29
n5
5.0235962227971E+36
2 √n
4678.4443995841
3 √n
279.72695320805
4 √n
68.3991549625
5 √n
29.379242164911
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
-21887841
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 21887842 can be divided by 4 positive divisors.
The sum of these divisors (counting 21887842) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011011111101101100010
3
Ternary
1112012000110211
4
Quaternary
1103133231202
5
Quinary
21100402332
6
Senary
2101044334
8
Octal
123375542
10
Decimal
21887842
12
Duodecimal
73b66aa
16
Hexadecimal
14dfb62
20
Vigesimal
6gfjc2
36
Base36
d14rm
md5
41577f0516cd1e835e2c439cc28470c1
sha1
1b4bd1fa8dda0f330dbf03fd1fbb90af2c4cb6b7
sha256
8c71aa512ba4c5a05613e7d7295708cdb28fb3fa117d237366061ae49fe34727
sha512
1e6eb338ce98c13f6535b05e5c54c5e04d3963489829130175e3035f2c4e5f6a2172a941b876ba7d7728c5e0a523af645693acaa038adfec3ae830a2bf83d804
ripemd-160
5942adf935584bce2122017138dea87159a11458
Diameter
43775684
Circumference
137525367.26027
Area
1.5050667547924E+15
Volume
4.3923551104464E+22
Surface area
6.0202670191694E+15
Circumference
137525367.26027
Perimeter
87551368
Area
479077627416964
Diagonal
30954083.007479
Surface area
2874465764501784
Volume
1.0485975414637E+22
Space diagonal
37910854.41204
Perimeter
65663526
Area
2.0744669786393E+14
Altitude
18955427.20602
Surface area
2.0744669786393E+14
Volume
1.2357840538409E+21
Height
10318027.66916