21702987 is an odd 8-digits composite number following 21702986
and preceding 21702988 . In scientific notation, it is written as 2.1702987 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 14415840 positive integers (up to 21702987) that are relatively prime to 21702987.
21702987 has 8 divisors, whose sum is 24202480
The reverse of 21702987 is 78920712
Previous prime number is 283
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million seven hundred two thousand nine hundred eighty-seven
Scientific notation
2.1702987 × 10^7
Engineering notation
2.1702987 × 10^6
Prime Factorization
9 × 283 × 8521
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21702987
Product of the distinct prime numbers
The prime factorization of 21702987 is 9 × 283 × 8521.
Since it has a total of 3 prime factors.
8 , 7 , 36 , 30 , 401 , 689 , 9812 , 5170 , 25842 , 48057 , 380043 , 841527 , 6064329 , 5881980 , 89182419 , 64629665 , 960458212 , 420112367 , 7755274070 , 4577890421
n×2
43405974
n×3
65108961
n×4
86811948
n×5
108514935
n÷2
10851493.5
n÷3
7234329
n÷3
5425746.75
n÷5
4340597.4
n2
471019644722169
n3
1.022253322615E+22
n4
2.218595057142E+29
n5
4.8150139683417E+36
2 √n
4658.6464772507
3 √n
278.93724260021
4 √n
68.254278087536
5 √n
29.329448858465
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
-21702986
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 21702987 can be divided by 8 positive divisors.
The sum of these divisors (counting 21702987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010110010100101001011
3
Ternary
1111211121220100
4
Quaternary
1102302211023
5
Quinary
21023443422
6
Senary
2053100443
8
Octal
122624513
10
Decimal
21702987
12
Duodecimal
7327723
16
Hexadecimal
14b294b
20
Vigesimal
6fch97
36
Base36
cx64r
md5
4f1859ac99d72466b8c8d90657aed8e0
sha1
813e9b0ed66f8c8276ad376624157d6d5d1a9d9b
sha256
ee4d8a9d87cc45d06a8a5c168107a39e2339650d9f87c498c7d1ddb6de323707
sha512
ce017ab658c93f171757860f2a174b6fe0df1fe1ce22d89b3fde8386febb08be41965d3155a015df16c8b9f8e635fe28dad3687d268a2839e8b1a07a5df058c0
ripemd-160
ed36fda4ee28f2c2ba1cbf8eeb1d2807d1f41376
Diameter
43405974
Circumference
136363889.04031
Area
1.4797518555556E+15
Volume
4.28200470458E+22
Surface area
5.9190074222226E+15
Circumference
136363889.04031
Perimeter
86811948
Area
471019644722169
Diagonal
30692658.559407
Surface area
2826117868333014
Volume
1.022253322615E+22
Space diagonal
37590676.160007
Perimeter
65108961
Area
2.0395748900546E+14
Altitude
18795338.080003
Surface area
2.0395748900546E+14
Volume
1.2047370941859E+21
Height
10230886.186469