20997988 (number)

20997988 is an even 8-digits composite number following 20997987 and preceding 20997989. In scientific notation, it is written as 2.0997988 × 10^7. The sum of its digits is 52. It has a total of 5 prime factors and 24 positive divisors. There are 9129120 positive integers (up to 20997988) that are relatively prime to 20997988.

Interesting facts

Basic properties

Name

Name twenty million nine hundred ninety-seven thousand nine hundred eighty-eight

Notation

Scientific notation 2.0997988 × 10^7
Engineering notation 2.0997988 × 10^6

Prime Factorization of 20997988

Prime Factorization 2 × 2 × 23 × 11 × 20749

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 10498994
Product of the distinct prime numbers

The prime factorization of 20997988 is 2 × 2 × 23 × 11 × 20749. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 20997988)

Multiplication

n×y
n×2 41995976
n×3 62993964
n×4 83991952
n×5 104989940

Division

n÷y
n÷2 10498994
n÷3 6999329.3333333
n÷3 5249497
n÷5 4199597.6

Exponentiation

ny
n2 440915500048144
n3 9.2583383790249E+21
n4 1.944064781827E+29
n5 4.0821448960027E+36

Nth Root

y√n
2√n 4582.3561624998
3√n 275.88360631632
4√n 67.69310276904
5√n 29.136376245198

Divisors of 20997988

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -20997987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 20997988 can be divided by 24 positive divisors. The sum of these divisors (counting 20997988) is 1, the average is 0.041666666666667.

Base conversion 20997988

Base System Value
2 Binary 1010000000110011101100100
3 Ternary 1110111210211021
4 Quaternary 1100012131210
5 Quinary 20333413423
6 Senary 2030020524
8 Octal 120063544
10 Decimal 20997988
12 Duodecimal 7047744
16 Hexadecimal 1406764
20 Vigesimal 6b4ej8
36 Base36 ci25g

Cryptographic Hash Functions

md5 5d032e8eba3f442fbffdbdbf781dd3f0
sha1 818aa9a8ebdc60de790a2b503b22fc01226ac99d
sha256 619ecfa72c394a0989480373700c6012e03d167ccdf8b49f11c76fd930c8fd37
sha512 2a19ef6e9e88fcb0497288be17c8b6bd8a3e1b871b63dba2bd7876220f1700ad7f300a058db27ac4c2b4bb2f54c51754f54c611b406760a1c8318ec6fe517906
ripemd-160 24823126bd7a7162d33b09558ba7abdcda49efe5

20997988 as geometric shapes

Circle

Radius = n
Diameter 41995976
Circumference 131934249.68193
Area 1.3851768958051E+15

Sphere

Radius = n
Volume 3.8781237114658E+22
Surface area 5.5407075832205E+15
Circumference 131934249.68193

Square

Length = n
Perimeter 83991952
Area 440915500048144
Diagonal 29695639.412148

Cube

Length = n
Surface area 2645493000288864
Volume 9.2583383790249E+21
Space diagonal 36369582.072722

Equilateral Triangle

Length = n
Perimeter 62993964
Area 1.9092201198201E+14
Altitude 18184791.036361

Triangular Pyramid

Length = n
Surface area 1.9092201198201E+14
Volume 1.0911056417214E+21
Height 9898546.4707158