21172871 (number)

21172871 is an odd 8-digits composite number following 21172870 and preceding 21172872. In scientific notation, it is written as 2.1172871 × 10^7. The sum of its digits is 29. It has a total of 4 prime factors and 16 positive divisors. There are 18923520 positive integers (up to 21172871) that are relatively prime to 21172871.

Interesting facts

Basic properties

Name

Name twenty-one million one hundred seventy-two thousand eight hundred seventy-one

Notation

Scientific notation 2.1172871 × 10^7
Engineering notation 2.1172871 × 10^6

Prime Factorization of 21172871

Prime Factorization 641 × 17 × 29 × 67

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21172871
Product of the distinct prime numbers

The prime factorization of 21172871 is 641 × 17 × 29 × 67. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 2, 41, 83, 233, 689, 6009, 9765, 89374, 98912, 468447, 637611, 3485244, 324469, 43509293, 94230005, 70522440, 801163803, 9242345854, 1800442800

Basic calculations (n = 21172871)

Multiplication

n×y
n×2 42345742
n×3 63518613
n×4 84691484
n×5 105864355

Division

n÷y
n÷2 10586435.5
n÷3 7057623.6666667
n÷3 5293217.75
n÷5 4234574.2

Exponentiation

ny
n2 448290466382641
n3 9.4915962152495E+21
n4 2.0096434224957E+29
n5 4.2549920940499E+36

Nth Root

y√n
2√n 4601.398809058
3√n 276.6473941834
4√n 67.833611204608
5√n 29.184748175836

Divisors of 21172871

1, 17, 29, 67, 493, 641, 1139, 1943, 10897, 18589, 33031, 42947, 316013, 730099, 1245463, 21172871

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 -21172870
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 21172871 can be divided by 16 positive divisors. The sum of these divisors (counting 21172871) is 1, the average is 0.0625.

Base conversion 21172871

Base System Value
2 Binary 1010000110001001010000111
3 Ternary 1110211200201102
4 Quaternary 1100301022013
5 Quinary 20410012441
6 Senary 2033450315
8 Octal 120611207
10 Decimal 21172871
12 Duodecimal 711099b
16 Hexadecimal 1431287
20 Vigesimal 6c6c3b
36 Base36 clt3b

Cryptographic Hash Functions

md5 bef3fa18e8b4b50d6d3fcae25c01fe82
sha1 84832ee30c9870c77561332e21563f937ac1b514
sha256 3693b5d1644ba47fb855be7ba89e16d94af7a412e48b72046e8358fda87395a7
sha512 983032ce837e92bbf0573b06035b52482c9b3fac8cb401bac903993a03dc81c31ea35f2fa3a07b7afe3c8a2cc28f5eb854d3486cd034c2a96fcf1693589def9f
ripemd-160 4b45dfe67befc1bc28c9b50b469ffaddb8743789

21172871 as geometric shapes

Circle

Radius = n
Diameter 42345742
Circumference 133033071.97801
Area 1.408346035862E+15

Sphere

Radius = n
Volume 3.9758305254225E+22
Surface area 5.6333841434482E+15
Circumference 133033071.97801

Square

Length = n
Perimeter 84691484
Area 448290466382641
Diagonal 29942961.322576

Cube

Length = n
Surface area 2689742798295846
Volume 9.4915962152495E+21
Space diagonal 36672488.314102

Equilateral Triangle

Length = n
Perimeter 63518613
Area 1.9411546608087E+14
Altitude 18336244.157051

Triangular Pyramid

Length = n
Surface area 1.9411546608087E+14
Volume 1.1185953413479E+21
Height 9980987.1075253