21020587 is an odd 8-digits composite number following 21020586
and preceding 21020588 . In scientific notation, it is written as 2.1020587 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 17958912 positive integers (up to 21020587) that are relatively prime to 21020587.
21020587 has 8 divisors, whose sum is 24101856
The reverse of 21020587 is 78502012
Previous prime number is 317
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million twenty thousand five hundred eighty-seven
Scientific notation
2.1020587 × 10^7
Engineering notation
2.1020587 × 10^6
Prime Factorization
7 × 317 × 9473
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21020587
Product of the distinct prime numbers
The prime factorization of 21020587 is 7 × 317 × 9473.
Since it has a total of 3 prime factors.
5 , 2 , 96 , 71 , 950 , 26 , 5479 , 5945 , 6370 , 82846 , 978456 , 730160 , 4753296 , 1220481 , 8070455 , 27738249 , 623970935 , 254359468 , 4207195078 , 2439969733
n×2
42041174
n×3
63061761
n×4
84082348
n×5
105102935
n÷2
10510293.5
n÷3
7006862.3333333
n÷3
5255146.75
n÷5
4204117.4
n2
441865077824569
n3
9.2882633106731E+21
n4
1.9524474700091E+29
n5
4.1041591906257E+36
2 √n
4584.8213705661
3 √n
275.98254370447
4 √n
67.711309030074
5 √n
29.142645128548
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
-21020586
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 21020587 can be divided by 8 positive divisors.
The sum of these divisors (counting 21020587) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001011111110101011
3
Ternary
1110112221211021
4
Quaternary
1100023332223
5
Quinary
20340124322
6
Senary
2030313311
8
Octal
120137653
10
Decimal
21020587
12
Duodecimal
7058837
16
Hexadecimal
140bfab
20
Vigesimal
6b7b97
36
Base36
cijl7
md5
e970e3e229f13f9610e0808dd68f4c22
sha1
6046f196d69573458ca25c0505c89bf09e8b1c73
sha256
0990ca6fab804e225f4699bc1470bf20957a86bad2369b62a62ea159b535a0b3
sha512
6782dedd96ea706a71abb848666aabefa59e22f4b08f8dc2bb0c7f1190d9167e3562b0a235938850f4d1f6309bfc982e679048e08a659531f0d69976d0dfdd7b
ripemd-160
0dd80a9e28b33ecc007e1e828a32b89c2070756f
Diameter
42041174
Circumference
132076243.38669
Area
1.3881600823715E+15
Volume
3.8906586375224E+22
Surface area
5.5526403294862E+15
Circumference
132076243.38669
Perimeter
84082348
Area
441865077824569
Diagonal
29727599.224444
Surface area
2651190466947414
Volume
9.2882633106731E+21
Space diagonal
36408724.688922
Perimeter
63061761
Area
1.9133319122063E+14
Altitude
18204362.344461
Surface area
1.9133319122063E+14
Volume
1.0946323287372E+21
Height
9909199.7414812