21781272 (number)

21781272 is an even 8-digits composite number following 21781271 and preceding 21781273. In scientific notation, it is written as 2.1781272 × 10^7. The sum of its digits is 30. It has a total of 6 prime factors and 32 positive divisors. There are 7244160 positive integers (up to 21781272) that are relatively prime to 21781272.

Interesting facts

Basic properties

Name

Name twenty-one million seven hundred eighty-one thousand two hundred seventy-two

Notation

Scientific notation 2.1781272 × 10^7
Engineering notation 2.1781272 × 10^6

Prime Factorization of 21781272

Prime Factorization 2 × 2 × 2 × 3 × 661 × 1373

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5445318
Product of the distinct prime numbers

The prime factorization of 21781272 is 2 × 2 × 2 × 3 × 661 × 1373. Since it has a total of 6 prime factors.

Most popular turbo-numbers

8, 2, 25, 95, 197, 804, 5789, 4277, 51245, 12915, 601082, 47048, 4568008, 4694119, 23365026, 45842921, 168271826, 571096782, 1254243777, 6570112214

Basic calculations (n = 21781272)

Multiplication

n×y
n×2 43562544
n×3 65343816
n×4 87125088
n×5 108906360

Division

n÷y
n÷2 10890636
n÷3 7260424
n÷3 5445318
n÷5 4356254.4

Exponentiation

ny
n2 474423809937984
n3 1.0333554047536E+22
n4 2.2507795143607E+29
n5 4.9024840814319E+36

Nth Root

y√n
2√n 4667.041032603
3√n 279.2722256584
4√n 68.315745129531
5√n 29.350577288462

Divisors of 21781272

1, 2, 3, 4, 6, 8, 12, 24, 661, 1322, 1373, 1983, 2644, 2746, 3966, 4119, 5288, 5492, 7932, 8238, 10984, 15864, 16476, 32952, 907553, 1815106, 2722659, 3630212, 5445318, 7260424, 10890636, 21781272

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 -21781271
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 21781272 can be divided by 32 positive divisors. The sum of these divisors (counting 21781272) is 1, the average is 0.03125.

Base conversion 21781272

Base System Value
2 Binary 1010011000101101100011000
3 Ternary 1111222121021210
4 Quaternary 1103011230120
5 Quinary 21034000042
6 Senary 2054503120
8 Octal 123055430
10 Decimal 21781272
12 Duodecimal 7364aa0
16 Hexadecimal 14c5b18
20 Vigesimal 6g2d3c
36 Base36 cyujc

Cryptographic Hash Functions

md5 a97d58fcd1acfc7cfc60a60e641b973f
sha1 ef3e177bf556235e10464a6144eb2b5b84471f99
sha256 99b0dfe4f71ac77555bf87e196ef45f10216940e95a79a06a30a4e3af7ea3bd2
sha512 7c1b3359ce432090c2455ab897e6dd2aa91bf0a280cff23cb609fb05f677caabe2507c200b708221f28e7ae0aaf06b7d5b3f9653d037959c440bcb4bea7e2aaf
ripemd-160 fdb9a2400ca4707995dda85b7b62af024f5e0878

21781272 as geometric shapes

Circle

Radius = n
Diameter 43562544
Circumference 136855768.20208
Area 1.4904463559893E+15

Sphere

Radius = n
Volume 4.3285089974948E+22
Surface area 5.961785423957E+15
Circumference 136855768.20208

Square

Length = n
Perimeter 87125088
Area 474423809937984
Diagonal 30803370.268137

Cube

Length = n
Surface area 2846542859627904
Volume 1.0333554047536E+22
Space diagonal 37726269.757477

Equilateral Triangle

Length = n
Perimeter 65343816
Area 2.0543153578325E+14
Altitude 18863134.878739

Triangular Pyramid

Length = n
Surface area 2.0543153578325E+14
Volume 1.2178210234617E+21
Height 10267790.089379