21491720 (number)

21491720 is an even 8-digits composite number following 21491719 and preceding 21491721. In scientific notation, it is written as 2.1491720 × 10^7. The sum of its digits is 26. It has a total of 6 prime factors and 32 positive divisors. There are 8498688 positive integers (up to 21491720) that are relatively prime to 21491720.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand seven hundred twenty

Notation

Scientific notation 2.1491720 × 10^7
Engineering notation 2.1491720 × 10^6

Prime Factorization of 21491720

Prime Factorization 2 × 2 × 2 × 5 × 89 × 6037

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5372930
Product of the distinct prime numbers

The prime factorization of 21491720 is 2 × 2 × 2 × 5 × 89 × 6037. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 9, 90, 44, 302, 307, 8514, 4833, 78641, 83667, 310110, 633232, 4267394, 7150516, 739821, 68145744, 394965041, 547933934, 4026042790, 4984537143

Basic calculations (n = 21491720)

Multiplication

n×y
n×2 42983440
n×3 64475160
n×4 85966880
n×5 107458600

Division

n÷y
n÷2 10745860
n÷3 7163906.6666667
n÷3 5372930
n÷5 4298344

Exponentiation

ny
n2 461894028558400
n3 9.9268971314491E+21
n4 2.1334609361791E+29
n5 4.5851745071299E+36

Nth Root

y√n
2√n 4635.9163064059
3√n 278.02918797103
4√n 68.087563522319
5√n 29.272123903123

Divisors of 21491720

1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 6037, 12074, 24148, 30185, 48296, 60370, 120740, 241480, 537293, 1074586, 2149172, 2686465, 4298344, 5372930, 10745860, 21491720

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 -21491719
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 21491720 can be divided by 32 positive divisors. The sum of these divisors (counting 21491720) is 1, the average is 0.03125.

Base conversion 21491720

Base System Value
2 Binary 1010001111111000000001000
3 Ternary 1111102220002122
4 Quaternary 1101333000020
5 Quinary 21000213340
6 Senary 2044350412
8 Octal 121770010
10 Decimal 21491720
12 Duodecimal 7245408
16 Hexadecimal 147f008
20 Vigesimal 6e6960
36 Base36 csn48

Cryptographic Hash Functions

md5 28f9c58e6d455f7fec67dae4fc4f7f6b
sha1 8b40849cab56ee07a0b3b423371e78ae15411967
sha256 a382808ab446ba149bcee45259a6f8701a5e0b88cf17a0ec4bcf348852ffd8fd
sha512 678d8534175224ffbdcabc5942dea7020e2f54d62dd920a4900715fc79205d0e3a6e4a0e2baddfbed9334426b3fb7fef76b6acef06ad2070d70727b693da3e29
ripemd-160 d49e001f8702c62e3e92225cc61dcac51b6dda94

21491720 as geometric shapes

Circle

Radius = n
Diameter 42983440
Circumference 135036459.33002
Area 1.4510828868561E+15

Sphere

Radius = n
Volume 4.1581689468136E+22
Surface area 5.8043315474243E+15
Circumference 135036459.33002

Square

Length = n
Perimeter 85966880
Area 461894028558400
Diagonal 30393881.902725

Cube

Length = n
Surface area 2771364171350400
Volume 9.9268971314491E+21
Space diagonal 37224750.982044

Equilateral Triangle

Length = n
Perimeter 64475160
Area 2.0000598129395E+14
Altitude 18612375.491022

Triangular Pyramid

Length = n
Surface area 2.0000598129395E+14
Volume 1.1698960462982E+21
Height 10131293.967575