21087746 is an even 8-digits composite number following 21087745
and preceding 21087747 . In scientific notation, it is written as 2.1087746 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 10344880 positive integers (up to 21087746) that are relatively prime to 21087746.
21087746 has 8 divisors, whose sum is 32228604
The reverse of 21087746 is 64778012
Previous prime number is 53
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million eighty-seven thousand seven hundred forty-six
Scientific notation
2.1087746 × 10^7
Engineering notation
2.1087746 × 10^6
Prime Factorization
2 × 53 × 198941
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21087746
Product of the distinct prime numbers
The prime factorization of 21087746 is 2 × 53 × 198941.
Since it has a total of 3 prime factors.
3 , 8 , 38 , 5 , 704 , 804 , 5383 , 8888 , 93944 , 99395 , 900896 , 227067 , 5147156 , 1383100 , 38627923 , 89289853 , 912618634 , 866622633 , 1066359660 , 1677971001
n×2
42175492
n×3
63263238
n×4
84350984
n×5
105438730
n÷2
10543873
n÷3
7029248.6666667
n÷3
5271936.5
n÷5
4217549.2
n2
444693031360516
n3
9.3775736933006E+21
n4
1.977518921406E+29
n5
4.1701416724805E+36
2 √n
4592.1395884707
3 √n
276.27614488804
4 √n
67.765327332425
5 √n
29.161243034157
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
-21087745
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 21087746 can be divided by 8 positive divisors.
The sum of these divisors (counting 21087746) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011100011000000010
3
Ternary
1110200100221122
4
Quaternary
1100130120002
5
Quinary
20344301441
6
Senary
2031552242
8
Octal
120343002
10
Decimal
21087746
12
Duodecimal
708b682
16
Hexadecimal
141c602
20
Vigesimal
6bfj76
36
Base36
cjzeq
md5
de76a2523377d344d89d6080df05cb83
sha1
c32d71a7cf262778ea972b6bf09841e63366e9aa
sha256
23609e3b93040424b8160ea8865ec4ed0b1309c89fedccd95ee9d9c466624d4c
sha512
c5eae984399b54ae0d48d9d1355076392a628e1a3df9021a7eef77ae299d03fd782175326da3d45f98cc8a38db71578fcebaa50012cea9805c5fd53d8f689d80
ripemd-160
282ffa9f7a1211b25bc4ec33a3cd9f26369e90d7
Diameter
42175492
Circumference
132498215.82874
Area
1.3970443604248E+15
Volume
3.928068883116E+22
Surface area
5.5881774416991E+15
Circumference
132498215.82874
Perimeter
84350984
Area
444693031360516
Diagonal
29822576.393079
Surface area
2668158188163096
Volume
9.3775736933006E+21
Space diagonal
36525047.489107
Perimeter
63263238
Area
1.9255773102206E+14
Altitude
18262523.744554
Surface area
1.9255773102206E+14
Volume
1.1051576582682E+21
Height
9940858.797693