28172021 (number)

28172021 is an odd 8-digits composite number following 28172020 and preceding 28172022. In scientific notation, it is written as 2.8172021 × 10^7. The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors. There are 27116208 positive integers (up to 28172021) that are relatively prime to 28172021.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.8172021 × 10^7
Engineering notation 2.8172021 × 10^6

Prime Factorization of 28172021

Prime Factorization 29 × 367 × 2647

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 28172021
Product of the distinct prime numbers

The prime factorization of 28172021 is 29 × 367 × 2647. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 28172021)

Multiplication

n×y
n×2 56344042
n×3 84516063
n×4 112688084
n×5 140860105

Division

n÷y
n÷2 14086010.5
n÷3 9390673.6666667
n÷3 7043005.25
n÷5 5634404.2

Exponentiation

ny
n2 793662767224441
n3 2.2359084145165E+22
n4 6.2990058807836E+29
n5 1.7745572595256E+37

Nth Root

y√n
2√n 5307.7321899282
3√n 304.27948169809
4√n 72.854184436642
5√n 30.900364379581

Divisors of 28172021

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -28172020
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 28172021 can be divided by 8 positive divisors. The sum of these divisors (counting 28172021) is 1, the average is 0.125.

Base conversion 28172021

Base System Value
2 Binary 1101011011101111011110101
3 Ternary 1222000021202012
4 Quaternary 1223131323311
5 Quinary 24203001041
6 Senary 2443454005
8 Octal 153357365
10 Decimal 28172021
12 Duodecimal 9527305
16 Hexadecimal 1addef5
20 Vigesimal 8g1a11
36 Base36 grto5

Cryptographic Hash Functions

md5 143873fbda535c5c7861941847e7f87d
sha1 24f0de4a28d5b2813d03195f57f2539d97070d3d
sha256 5b3c613f8e889a0827b33d4f9b527259eca300670f54d268aaf8bc61c0950dce
sha512 4c9cd9bd0a17605f50633d6fbcf55f48760b48c934cb16ad50b1160382c131fdca551f88ca9a55988550df87297f5d6fabd5cf1402ce6b13bd88cdf001c9453b
ripemd-160 cb448bb1447ec670923e51fa8c5730171dfa10c7

28172021 as geometric shapes

Circle

Radius = n
Diameter 56344042
Circumference 177010028.42075
Area 2.49336511894E+15

Sphere

Radius = n
Volume 9.3657512655262E+22
Surface area 9.9734604757602E+15
Circumference 177010028.42075

Square

Length = n
Perimeter 112688084
Area 793662767224441
Diagonal 39841254.17766

Cube

Length = n
Surface area 4761976603346646
Volume 2.2359084145165E+22
Space diagonal 48795371.723897

Equilateral Triangle

Length = n
Perimeter 84516063
Area 3.4366605922711E+14
Altitude 24397685.861949

Triangular Pyramid

Length = n
Surface area 3.4366605922711E+14
Volume 2.6350433366945E+21
Height 13280418.05922