19987641 (number)

19987641 is an odd 8-digits composite number following 19987640 and preceding 19987642. In scientific notation, it is written as 1.9987641 × 10^7. The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors. There are 12573792 positive integers (up to 19987641) that are relatively prime to 19987641.

Interesting facts

Basic properties

Name

Name nineteen million nine hundred eighty-seven thousand six hundred forty-one

Notation

Scientific notation 1.9987641 × 10^7
Engineering notation 1.9987641 × 10^6

Prime Factorization of 19987641

Prime Factorization 27 × 3 × 29 × 67 × 127

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 19987641
Product of the distinct prime numbers

The prime factorization of 19987641 is 27 × 3 × 29 × 67 × 127. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 2, 66, 89, 265, 358, 7213, 6811, 70621, 31129, 792003, 649489, 3115092, 9540833, 95634443, 94492744, 692887107, 669702719, 1418470735, 4180544440

Basic calculations (n = 19987641)

Multiplication

n×y
n×2 39975282
n×3 59962923
n×4 79950564
n×5 99938205

Division

n÷y
n÷2 9993820.5
n÷3 6662547
n÷3 4996910.25
n÷5 3997528.2

Exponentiation

ny
n2 399505792744881
n3 7.9851783628051E+21
n4 1.5960487843672E+29
n5 3.1901250120417E+36

Nth Root

y√n
2√n 4470.7539632594
3√n 271.38583765962
4√n 66.86369690093
5√n 28.85043117073

Divisors of 19987641

1, 3, 27, 29, 67, 81, 87, 127, 201, 381, 783, 1809, 1943, 2349, 3429, 3683, 5427, 5829, 8509, 10287, 11049, 25527, 52461, 99441, 157383, 229743, 246761, 298323, 689229, 740283, 6662547, 19987641

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -19987640
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 19987641 can be divided by 32 positive divisors. The sum of these divisors (counting 19987641) is 1, the average is 0.03125.

Base conversion 19987641

Base System Value
2 Binary 1001100001111110010111001
3 Ternary 1101121110220000
4 Quaternary 1030033302321
5 Quinary 20104101031
6 Senary 1552223213
8 Octal 114176271
10 Decimal 19987641
12 Duodecimal 683ab09
16 Hexadecimal 130fcb9
20 Vigesimal 64i921
36 Base36 bwek9

Cryptographic Hash Functions

md5 2b366765b0c75e3d5ae77be46bf8666f
sha1 c045f67e91a738c8a140a25201053b774038a278
sha256 8b39430afec7be58754e80d67eee8445330ad926f73293da2ffb4c7243a709cd
sha512 354dd483a9b9e004a6831d8ad0c4ce3720a72197197da08f670765bf4e058b13cce7f53f2b9af5582d26fd91c129b8809ed7a2fe332aa64166b92b67745f28e9
ripemd-160 dab728fcc3a517f512ab0f20324ff7d425857acb

19987641 as geometric shapes

Circle

Radius = n
Diameter 39975282
Circumference 125586052.25638
Area 1.2550844635539E+15

Sphere

Radius = n
Volume 3.344823690959E+22
Surface area 5.0203378542155E+15
Circumference 125586052.25638

Square

Length = n
Perimeter 79950564
Area 399505792744881
Diagonal 28266792.982045

Cube

Length = n
Surface area 2397034756469286
Volume 7.9851783628051E+21
Space diagonal 34619609.735447

Equilateral Triangle

Length = n
Perimeter 59962923
Area 1.7299108273805E+14
Altitude 17309804.867723

Triangular Pyramid

Length = n
Surface area 1.7299108273805E+14
Volume 9.4106229488726E+20
Height 9422264.3273482