20997639 (number)

20997639 is an odd 8-digits composite number following 20997638 and preceding 20997640. In scientific notation, it is written as 2.0997639 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 12841920 positive integers (up to 20997639) that are relatively prime to 20997639.

Interesting facts

Basic properties

Name

Name twenty million nine hundred ninety-seven thousand six hundred thirty-nine

Notation

Scientific notation 2.0997639 × 10^7
Engineering notation 2.0997639 × 10^6

Prime Factorization of 20997639

Prime Factorization 9 × 197 × 13 × 911

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 20997639
Product of the distinct prime numbers

The prime factorization of 20997639 is 9 × 197 × 13 × 911. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 8, 42, 23, 76, 420, 1879, 4373, 73435, 27465, 735195, 823635, 6231853, 1998984, 30954394, 39847955, 466060624, 638798516, 4227019496, 3622087612

Basic calculations (n = 20997639)

Multiplication

n×y
n×2 41995278
n×3 62992917
n×4 83990556
n×5 104988195

Division

n÷y
n÷2 10498819.5
n÷3 6999213
n÷3 5249409.75
n÷5 4199527.8

Exponentiation

ny
n2 440900843574321
n3 9.2578767481691E+21
n4 1.9439355386455E+29
n5 4.0818056679748E+36

Nth Root

y√n
2√n 4582.3180814954
3√n 275.88207785381
4√n 67.692821491613
5√n 29.13627939151

Divisors of 20997639

1, 9, 13, 117, 197, 911, 1773, 2561, 8199, 11843, 23049, 106587, 179467, 1615203, 2333071, 20997639

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 -20997638
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 20997639 can be divided by 16 positive divisors. The sum of these divisors (counting 20997639) is 1, the average is 0.0625.

Base conversion 20997639

Base System Value
2 Binary 1010000000110011000000111
3 Ternary 1110111210100100
4 Quaternary 1100012120013
5 Quinary 20333411024
6 Senary 2030015143
8 Octal 120063007
10 Decimal 20997639
12 Duodecimal 70474b3
16 Hexadecimal 1406607
20 Vigesimal 6b4e1j
36 Base36 ci1vr

Cryptographic Hash Functions

md5 2973303690c8cd75c18bc14657de83c3
sha1 4ba00c4be5458c5f12a86a4383f4c858985d5c24
sha256 91a68e453edea18c537c93f03870fc6043dcf63c768bef4e7577007acf66f2b8
sha512 f0828d115821a63c6c4eea5d205e4a7f35172d020cdd2362ef424a3cfc51abb541175239d13d0457778f6ff4e90380061a65eaf7f2dd363054e0a8a65d924a3e
ripemd-160 7f0b1966863847b91766419c9880c35215039804

20997639 as geometric shapes

Circle

Radius = n
Diameter 41995278
Circumference 131932056.85026
Area 1.3851308511346E+15

Sphere

Radius = n
Volume 3.877930343985E+22
Surface area 5.5405234045385E+15
Circumference 131932056.85026

Square

Length = n
Perimeter 83990556
Area 440900843574321
Diagonal 29695145.851614

Cube

Length = n
Surface area 2645405061445926
Volume 9.2578767481691E+21
Space diagonal 36368977.58699

Equilateral Triangle

Length = n
Perimeter 62992917
Area 1.9091566554268E+14
Altitude 18184488.793495

Triangular Pyramid

Length = n
Surface area 1.9091566554268E+14
Volume 1.0910512380033E+21
Height 9898381.9505381