20587988 is an even 8-digits composite number following 20587987
and preceding 20587989 . In scientific notation, it is written as 2.0587988 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 12 positive divisors.
There are 10125120 positive integers (up to 20587988) that are relatively prime to 20587988.
20587988 has 12 divisors, whose sum is 36620052
The reverse of 20587988 is 88978502
Previous prime number is 61
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
twenty million five hundred eighty-seven thousand nine hundred eighty-eight
Scientific notation
2.0587988 × 10^7
Engineering notation
2.0587988 × 10^6
Prime Factorization
2 × 2 × 61 × 84377
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10293994
Product of the distinct prime numbers
The prime factorization of 20587988 is 2 × 2 × 61 × 84377.
Since it has a total of 4 prime factors.
7 , 3 , 71 , 71 , 573 , 437 , 111 , 1433 , 17922 , 18853 , 541094 , 631491 , 6172260 , 8153029 , 18203889 , 39649047 , 275977179 , 451487668 , 8708158902 , 9311939793
n×2
41175976
n×3
61763964
n×4
82351952
n×5
102939940
n÷2
10293994
n÷3
6862662.6666667
n÷3
5146997
n÷5
4117597.6
n2
423865249888144
n3
8.7265326783141E+21
n4
1.7966175006274E+29
n5
3.6988739543507E+36
2 √n
4537.3988142988
3 √n
274.07618603554
4 √n
67.360216851631
5 √n
29.021695511749
1 , 2 , 4 , 61 , 122 , 244 , 84377 , 168754 , 337508 , 5146997 , 10293994 , 20587988
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20587987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20587988 can be divided by 12 positive divisors.
The sum of these divisors (counting 20587988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001110100010010111010100
3
Ternary
1102201222102002
4
Quaternary
1032202113110
5
Quinary
20232303423
6
Senary
2013134432
8
Octal
116422724
10
Decimal
20587988
12
Duodecimal
6a8a418
16
Hexadecimal
13a25d4
20
Vigesimal
68d9j8
36
Base36
c99sk
md5
132a6596f5babe923f9490fb5e1da405
sha1
378c81514c68f9cb7849f28ad7b37ee81d968dfa
sha256
669e2ec4cc478a3697cc2f5d0a9bbdc39ebc3b298cfeccf30824eeb48a219e44
sha512
bd3847e232477057a1428203093e55fed04b359f00af0878b2e00f6716467db7567b1513d70b0a2fd9f8c1dc93937f3b278e8c737a4400decf7d20ea5f086018
ripemd-160
1c5d405bc34571db347ced82aadf4cbd78ae0e83
Diameter
41175976
Circumference
129358143.70599
Area
1.3316119551606E+15
Volume
3.655361460467E+22
Surface area
5.3264478206424E+15
Circumference
129358143.70599
Perimeter
82351952
Area
423865249888144
Diagonal
29115811.851575
Surface area
2543191499328864
Volume
8.7265326783141E+21
Space diagonal
35659441.241618
Perimeter
61763964
Area
1.8353903709229E+14
Altitude
17829720.620809
Surface area
1.8353903709229E+14
Volume
1.028431738847E+21
Height
9705270.6171915