20787628 is an even 8-digits composite number following 20787627
and preceding 20787629 . In scientific notation, it is written as 2.0787628 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors.
There are 10335392 positive integers (up to 20787628) that are relatively prime to 20787628.
20787628 has 12 divisors, whose sum is 36582840
The reverse of 20787628 is 82678702
Previous prime number is 179
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million seven hundred eighty-seven thousand six hundred twenty-eight
Scientific notation
2.0787628 × 10^7
Engineering notation
2.0787628 × 10^6
Prime Factorization
2 × 2 × 179 × 29033
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10393814
Product of the distinct prime numbers
The prime factorization of 20787628 is 2 × 2 × 179 × 29033.
Since it has a total of 4 prime factors.
3 , 10 , 95 , 76 , 235 , 183 , 803 , 6756 , 12489 , 13224 , 632520 , 563737 , 7467968 , 915406 , 78011083 , 37686135 , 917754065 , 107577575 , 2309826125 , 2281296932
n×2
41575256
n×3
62362884
n×4
83150512
n×5
103938140
n÷2
10393814
n÷3
6929209.3333333
n÷3
5196907
n÷5
4157525.6
n2
432125477866384
n3
8.9828636832086E+21
n4
1.8673242862125E+29
n5
3.8817242617151E+36
2 √n
4559.3451284148
3 √n
274.95923583097
4 √n
67.522922984827
5 √n
29.077762651589
1 , 2 , 4 , 179 , 358 , 716 , 29033 , 58066 , 116132 , 5196907 , 10393814 , 20787628
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
-20787627
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 20787628 can be divided by 12 positive divisors.
The sum of these divisors (counting 20787628) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111010011000110101100
3
Ternary
1110010010021011
4
Quaternary
1033103012230
5
Quinary
20310201003
6
Senary
2021315004
8
Octal
117230654
10
Decimal
20787628
12
Duodecimal
6b65a64
16
Hexadecimal
13d31ac
20
Vigesimal
69i918
36
Base36
cdju4
md5
e3e474daeb5648bcefe749360793d679
sha1
14f071ae772f617330e55615297ff4502a0c20c0
sha256
774e0b7aefa94d378221ba3928dc6a31a589d37c9112c922591c45a81e20a0df
sha512
b797b47bcf20cf2d1fea2996ed6d24b948f196b8b65866f7beb468530db405320d0e22325309c7295df6ebba6833ba0a37c895158ef96456687416a22bce9efb
ripemd-160
71961cb60c70d5feda0982ae32142ae43c6cf047
Diameter
41575256
Circumference
130612518.82071
Area
1.357562226694E+15
Volume
3.7627331407156E+22
Surface area
5.430248906776E+15
Circumference
130612518.82071
Perimeter
83150512
Area
432125477866384
Diagonal
29398145.447167
Surface area
2592752867198304
Volume
8.9828636832086E+21
Space diagonal
36005227.864841
Perimeter
62362884
Area
1.8711582072739E+14
Altitude
18002613.932421
Surface area
1.8711582072739E+14
Volume
1.0586406374785E+21
Height
9799381.8157222