21291249 (number)

21291249 is an odd 8-digits composite number following 21291248 and preceding 21291250. In scientific notation, it is written as 2.1291249 × 10^7. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 11746560 positive integers (up to 21291249) that are relatively prime to 21291249.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred ninety-one thousand two hundred forty-nine

Notation

Scientific notation 2.1291249 × 10^7
Engineering notation 2.1291249 × 10^6

Prime Factorization of 21291249

Prime Factorization 21 × 29 × 34961

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21291249
Product of the distinct prime numbers

The prime factorization of 21291249 is 21 × 29 × 34961. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21291249)

Multiplication

n×y
n×2 42582498
n×3 63873747
n×4 85164996
n×5 106456245

Division

n÷y
n÷2 10645624.5
n÷3 7097083
n÷3 5322812.25
n÷5 4258249.8

Exponentiation

ny
n2 453317283980001
n3 9.6516911692219E+21
n4 2.05496559955E+29
n5 4.3752784266454E+36

Nth Root

y√n
2√n 4614.2441417853
3√n 277.1620168925
4√n 67.928227871668
5√n 29.217309952838

Divisors of 21291249

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 -21291248
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 21291249 can be divided by 8 positive divisors. The sum of these divisors (counting 21291249) is 1, the average is 0.125.

Base conversion 21291249

Base System Value
2 Binary 1010001001110000011110001
3 Ternary 1111001201002210
4 Quaternary 1101032003301
5 Quinary 20422304444
6 Senary 2040202333
8 Octal 121160361
10 Decimal 21291249
12 Duodecimal 71693a9
16 Hexadecimal 144e0f1
20 Vigesimal 6d1829
36 Base36 cocfl

Cryptographic Hash Functions

md5 0e8bfb178ca588454bfc3aad4947b994
sha1 add2b5cd8389a972c07f7bb4c5df39a01721f058
sha256 72b6db8c9b9efd5073d1552e42214a6136b04d73eefee2f147a2c45b5948bbb9
sha512 80807e257ce6b3084b27787ac5a012e87032df3a5b0e57fd7721201029b597598d5be3d30d17e3033e8ed900448f253b3a1872407dca10c3cd7fe2fd1bdd7ad0
ripemd-160 565c4d3b86b27109d5d9206790fffa578f59c760

21291249 as geometric shapes

Circle

Radius = n
Diameter 42582498
Circumference 133776862.8883
Area 1.4241382490968E+15

Sphere

Radius = n
Volume 4.042890942926E+22
Surface area 5.6965529963874E+15
Circumference 133776862.8883

Square

Length = n
Perimeter 85164996
Area 453317283980001
Diagonal 30110373.095663

Cube

Length = n
Surface area 2719903703880006
Volume 9.6516911692219E+21
Space diagonal 36877525.0246

Equilateral Triangle

Length = n
Perimeter 63873747
Area 1.9629214195062E+14
Altitude 18438762.5123

Triangular Pyramid

Length = n
Surface area 1.9629214195062E+14
Volume 1.1374627126125E+21
Height 10036791.031888