20721880 (number)

20721880 is an even 8-digits composite number following 20721879 and preceding 20721881. In scientific notation, it is written as 2.0721880 × 10^7. The sum of its digits is 28. It has a total of 5 prime factors and 16 positive divisors. There are 8288736 positive integers (up to 20721880) that are relatively prime to 20721880.

Interesting facts

Basic properties

Name

Name twenty million seven hundred twenty-one thousand eight hundred eighty

Notation

Scientific notation 2.0721880 × 10^7
Engineering notation 2.0721880 × 10^6

Prime Factorization of 20721880

Prime Factorization 2 × 2 × 2 × 5 × 518047

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5180470
Product of the distinct prime numbers

The prime factorization of 20721880 is 2 × 2 × 2 × 5 × 518047. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 3, 57, 34, 380, 347, 1757, 8197, 6460, 8008, 208010, 383995, 931071, 7786561, 89678719, 31062085, 538876893, 15113913, 7857885652, 5351504656

Basic calculations (n = 20721880)

Multiplication

n×y
n×2 41443760
n×3 62165640
n×4 82887520
n×5 103609400

Division

n÷y
n÷2 10360940
n÷3 6907293.3333333
n÷3 5180470
n÷5 4144376

Exponentiation

ny
n2 429396310734400
n3 8.8978988234809E+21
n4 1.8438119167231E+29
n5 3.8207249280907E+36

Nth Root

y√n
2√n 4552.1291721567
3√n 274.66904539158
4√n 67.469468444302
5√n 29.05934565823

Divisors of 20721880

1, 2, 4, 5, 8, 10, 20, 40, 518047, 1036094, 2072188, 2590235, 4144376, 5180470, 10360940, 20721880

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 -20721879
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 20721880 can be divided by 16 positive divisors. The sum of these divisors (counting 20721880) is 1, the average is 0.0625.

Base conversion 20721880

Base System Value
2 Binary 1001111000011000011011000
3 Ternary 1102222210002001
4 Quaternary 1033003003120
5 Quinary 20301100010
6 Senary 2020050344
8 Octal 117030330
10 Decimal 20721880
12 Duodecimal 6b339b4
16 Hexadecimal 13c30d8
20 Vigesimal 69a4e0
36 Base36 cc53s

Cryptographic Hash Functions

md5 2ef596518a4945616e7257a1274126bd
sha1 15f41d9f0999059c419dd633f3acac976f631b97
sha256 4837dbf42645c441e619079dcd5153723648b366253edff305640c2f3c111535
sha512 6d5e41a87757505239c3f9f1ecc0ad082730689d2849c848a0347012923654476406dcb236f4755fae5761edb95396e802434cd3c719ea91e908a2d0e1a0da66
ripemd-160 0cf1392c0b0c8ee6ffe77083da5cda36e382e79c

20721880 as geometric shapes

Circle

Radius = n
Diameter 41443760
Circumference 130199411.95314
Area 1.3489882952818E+15

Sphere

Radius = n
Volume 3.7271431434977E+22
Surface area 5.395953181127E+15
Circumference 130199411.95314

Square

Length = n
Perimeter 82887520
Area 429396310734400
Diagonal 29305163.733868

Cube

Length = n
Surface area 2576377864406400
Volume 8.8978988234809E+21
Space diagonal 35891348.988345

Equilateral Triangle

Length = n
Perimeter 62165640
Area 1.8593405669365E+14
Altitude 17945674.494173

Triangular Pyramid

Length = n
Surface area 1.8593405669365E+14
Volume 1.0486274327325E+21
Height 9768387.9112893