21291272 (number)

21291272 is an even 8-digits composite number following 21291271 and preceding 21291273. In scientific notation, it is written as 2.1291272 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 8 positive divisors. There are 10645632 positive integers (up to 21291272) that are relatively prime to 21291272.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1291272 × 10^7
Engineering notation 2.1291272 × 10^6

Prime Factorization of 21291272

Prime Factorization 2 × 2 × 2 × 2661409

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 5322818
Product of the distinct prime numbers

The prime factorization of 21291272 is 2 × 2 × 2 × 2661409. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21291272)

Multiplication

n×y
n×2 42582544
n×3 63873816
n×4 85165088
n×5 106456360

Division

n÷y
n÷2 10645636
n÷3 7097090.6666667
n÷3 5322818
n÷5 4258254.4

Exponentiation

ny
n2 453318263377984
n3 9.6517224481483E+21
n4 2.0549744791203E+29
n5 4.3753020588009E+36

Nth Root

y√n
2√n 4614.2466340671
3√n 277.16211669445
4√n 67.92824621663
5√n 29.21731626527

Divisors of 21291272

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 -21291271
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 21291272 can be divided by 8 positive divisors. The sum of these divisors (counting 21291272) is 1, the average is 0.125.

Base conversion 21291272

Base System Value
2 Binary 1010001001110000100001000
3 Ternary 1111001201010122
4 Quaternary 1101032010020
5 Quinary 20422310042
6 Senary 2040202412
8 Octal 121160410
10 Decimal 21291272
12 Duodecimal 7169408
16 Hexadecimal 144e108
20 Vigesimal 6d183c
36 Base36 cocg8

Cryptographic Hash Functions

md5 d197f6e7257126f01602b587dff7e11e
sha1 42ff4b6bfaa99dce88af21b6f4429320a43fbf5a
sha256 2dba481cbf305076d779a57ea0cbbb2a57f20b22ddf36e35ba06e91a96a26963
sha512 3b82fae234103de1f862d68651353a519dc6ca6a07ca21e7f59ee20ffd1bc29a033968bb945601b93c6574bb388432324b1c9e9ddd8b8ee1f82add464a86387a
ripemd-160 e062de203976791f19e40d342418d6dde5fa20d7

21291272 as geometric shapes

Circle

Radius = n
Diameter 42582544
Circumference 133777007.40156
Area 1.4241413259664E+15

Sphere

Radius = n
Volume 4.0429040450121E+22
Surface area 5.6965653038654E+15
Circumference 133777007.40156

Square

Length = n
Perimeter 85165088
Area 453318263377984
Diagonal 30110405.622575

Cube

Length = n
Surface area 2719909580267904
Volume 9.6517224481483E+21
Space diagonal 36877564.861769

Equilateral Triangle

Length = n
Perimeter 63873816
Area 1.9629256604239E+14
Altitude 18438782.430884

Triangular Pyramid

Length = n
Surface area 1.9629256604239E+14
Volume 1.1374663988693E+21
Height 10036801.874192