20987752 is an even 8-digits composite number following 20987751
and preceding 20987753 . In scientific notation, it is written as 2.0987752 × 10^7.
The sum of its digits is 40. It has a total of 5 prime factors and 16 positive divisors.
There are 10470384 positive integers (up to 20987752) that are relatively prime to 20987752.
20987752 has 16 divisors, whose sum is 39440160
The reverse of 20987752 is 25778902
Previous prime number is 487
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million nine hundred eighty-seven thousand seven hundred fifty-two
Scientific notation
2.0987752 × 10^7
Engineering notation
2.0987752 × 10^6
Prime Factorization
2 × 2 × 2 × 487 × 5387
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5246938
Product of the distinct prime numbers
The prime factorization of 20987752 is 2 × 2 × 2 × 487 × 5387.
Since it has a total of 5 prime factors.
3 , 4 , 25 , 58 , 592 , 304 , 3163 , 2528 , 694 , 2802 , 464664 , 591885 , 7411525 , 6407245 , 39376586 , 36389975 , 869965879 , 70545632 , 1797590480 , 3595709836
n×2
41975504
n×3
62963256
n×4
83951008
n×5
104938760
n÷2
10493876
n÷3
6995917.3333333
n÷3
5246938
n÷5
4197550.4
n2
440485734013504
n3
9.2448053450134E+21
n4
1.9402768186942E+29
n5
4.0722048682102E+36
2 √n
4581.2391336842
3 √n
275.83877021764
4 √n
67.684851582051
5 √n
29.133535038525
1 , 2 , 4 , 8 , 487 , 974 , 1948 , 3896 , 5387 , 10774 , 21548 , 43096 , 2623469 , 5246938 , 10493876 , 20987752
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20987751
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20987752 can be divided by 16 positive divisors.
The sum of these divisors (counting 20987752) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000011111101101000
3
Ternary
1110111021210011
4
Quaternary
1100003331220
5
Quinary
20333102002
6
Senary
2025501304
8
Octal
120037550
10
Decimal
20987752
12
Duodecimal
7041834
16
Hexadecimal
1403f68
20
Vigesimal
6b397c
36
Base36
chu94
md5
37bb55942761b6bd54aa9dec0da60ea1
sha1
4c3423757a1af9c762e51dbc13495fc282884b20
sha256
61143e0e1988648c08ba3fe906f2d28ab42a4f8c0b3943adae8985b3595f3ee2
sha512
fa83925513489d3550d60eeecb37877ca9b1d733ad30095061ec681a32fefe2c56e78f64dafa57550ee18870bf518defb806f0dd3604b2f331aec0c6852cb15d
ripemd-160
2f6d2f1db9c4a3d7be4d0039e35869f3085f48a3
Diameter
41975504
Circumference
131869934.99713
Area
1.3838267459879E+15
Volume
3.8724550074349E+22
Surface area
5.5353069839517E+15
Circumference
131869934.99713
Perimeter
83951008
Area
440485734013504
Diagonal
29681163.522123
Surface area
2642914404081024
Volume
9.2448053450134E+21
Space diagonal
36351852.800655
Perimeter
62963256
Area
1.9073591783016E+14
Altitude
18175926.400328
Surface area
1.9073591783016E+14
Volume
1.0895107583681E+21
Height
9893721.174041