21087427 is an odd 8-digits prime number following 21087426
and preceding 21087428 . In scientific notation, it is written as 2.1087427 × 10^7.
The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors.
There are 21087426 positive integers (up to 21087427) that are relatively prime to 21087427.
21087427 has 2 divisors, whose sum is 21087428
The reverse of 21087427 is 72478012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million eighty-seven thousand four hundred twenty-seven
Scientific notation
2.1087427 × 10^7
Engineering notation
2.1087427 × 10^6
Prime Factorization
21087427
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21087427
Product of the distinct prime numbers
The prime factorization of 21087427 is 21087427.
Since it has a total of 1 prime factors.
7 , 3 , 46 , 2 , 383 , 750 , 692 , 3047 , 78269 , 42787 , 824639 , 624853 , 7007568 , 8131348 , 10400870 , 98832019 , 739599355 , 160806530 , 8878512202 , 8778373202
n×2
42174854
n×3
63262281
n×4
84349708
n×5
105437135
n÷2
10543713.5
n÷3
7029142.3333333
n÷3
5271856.75
n÷5
4217485.4
n2
444679577480329
n3
9.3771481285073E+21
n4
1.9773992662808E+29
n5
4.1698262677551E+36
2 √n
4592.1048550746
3 √n
276.27475177986
4 √n
67.765071054893
5 √n
29.161154807631
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21087428
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10543714
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4592.1049639572
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999051568
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21087427 can be divided by 2 positive divisors.
The sum of these divisors (counting 21087427) is 21087428, the average is 10543714.
Base
System
Value
2
Binary
1010000011100010011000011
3
Ternary
1110200100111211
4
Quaternary
1100130103003
5
Quinary
20344244202
6
Senary
2031550551
8
Octal
120342303
10
Decimal
21087427
12
Duodecimal
708b457
16
Hexadecimal
141c4c3
20
Vigesimal
6bfib7
36
Base36
cjz5v
md5
e278d56bd719a7b0e0c4e403891c5ebc
sha1
cebb6cb1221819a2b1a8fa7e0e85906fcf611e62
sha256
398213a8ff7b93dac281ab0e898a8b7db3e358c282c555d93b02f19273a4915a
sha512
07f14b6d0a54021a16ca98641f27b1eaca016d929dd1af7c7164606b7d69e277411440d06e1bafb55ee84b017d88106f3118fdd501899564c2bd10cc0c299a1d
ripemd-160
e7f57def648654d2a1acc0de4f0e521e993fb519
Diameter
42174854
Circumference
132496211.49262
Area
1.3970020938136E+15
Volume
3.9278906229522E+22
Surface area
5.5880083752545E+15
Circumference
132496211.49262
Perimeter
84349708
Area
444679577480329
Diagonal
29822125.258953
Surface area
2668077464881974
Volume
9.3771481285073E+21
Space diagonal
36524494.9649
Perimeter
63262281
Area
1.9255190532105E+14
Altitude
18262247.48245
Surface area
1.9255190532105E+14
Volume
1.1051075049764E+21
Height
9940708.4196509