20195721 (number)

20195721 is an odd 8-digits composite number following 20195720 and preceding 20195722. In scientific notation, it is written as 2.0195721 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 24 positive divisors. There are 10652256 positive integers (up to 20195721) that are relatively prime to 20195721.

Interesting facts

Basic properties

Name

Name twenty million one hundred ninety-five thousand seven hundred twenty-one

Notation

Scientific notation 2.0195721 × 10^7
Engineering notation 2.0195721 × 10^6

Prime Factorization of 20195721

Prime Factorization 3 × 3 × 13 × 7 × 24659

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 6731907
Product of the distinct prime numbers

The prime factorization of 20195721 is 3 × 3 × 13 × 7 × 24659. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 5, 1, 31, 848, 326, 8996, 4539, 3046, 13976, 855654, 457197, 7135551, 2056705, 25793930, 83828386, 476278414, 703782207, 9381415739, 5363467181

Basic calculations (n = 20195721)

Multiplication

n×y
n×2 40391442
n×3 60587163
n×4 80782884
n×5 100978605

Division

n÷y
n÷2 10097860.5
n÷3 6731907
n÷3 5048930.25
n÷5 4039144.2

Exponentiation

ny
n2 407867146709841
n3 8.237171100018E+21
n4 1.6635560936523E+29
n5 3.3596714735251E+36

Nth Root

y√n
2√n 4493.9649531344
3√n 272.32433646672
4√n 67.037041649631
5√n 28.910251680613

Divisors of 20195721

1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 24659, 73977, 172613, 221931, 320567, 517839, 961701, 1553517, 2243969, 2885103, 6731907, 20195721

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 -20195720
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 20195721 can be divided by 24 positive divisors. The sum of these divisors (counting 20195721) is 1, the average is 0.041666666666667.

Base conversion 20195721

Base System Value
2 Binary 1001101000010100110001001
3 Ternary 1102000001022200
4 Quaternary 1031002212021
5 Quinary 20132230341
6 Senary 2000510413
8 Octal 115024611
10 Decimal 20195721
12 Duodecimal 691b409
16 Hexadecimal 1342989
20 Vigesimal 664961
36 Base36 c0v49

Cryptographic Hash Functions

md5 2ef07e8248f8d24d3428ada58c6364b8
sha1 548e895fd6a718888064312e3798ed52ace730fc
sha256 f09ceec78c0a36e000081af212ada8c7e255424bcbb9409b5fee7ca703344ad6
sha512 d82cef56d329fdead2ebd8559897f3a31a9c4c1b6f9707bcb3cf2c8da0a1c428a652f29faef44532e1bd87d66a59ae678b18ed5977cf6a015b3412d0b51c0306
ripemd-160 306a725d655226da954ef087c4021c17174338a4

20195721 as geometric shapes

Circle

Radius = n
Diameter 40391442
Circumference 126893457.4551
Area 1.2813524317443E+15

Sphere

Radius = n
Volume 3.4503781618905E+22
Surface area 5.1254097269771E+15
Circumference 126893457.4551

Square

Length = n
Perimeter 80782884
Area 407867146709841
Diagonal 28561062.540103

Cube

Length = n
Surface area 2447202880259046
Volume 8.237171100018E+21
Space diagonal 34980014.867486

Equilateral Triangle

Length = n
Perimeter 60587163
Area 1.766116552099E+14
Altitude 17490007.433743

Triangular Pyramid

Length = n
Surface area 1.766116552099E+14
Volume 9.7075992376943E+20
Height 9520354.1800344