21491512 (number)

21491512 is an even 8-digits composite number following 21491511 and preceding 21491513. In scientific notation, it is written as 2.1491512 × 10^7. The sum of its digits is 25. It has a total of 5 prime factors and 16 positive divisors. There are 9210624 positive integers (up to 21491512) that are relatively prime to 21491512.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand five hundred twelve

Notation

Scientific notation 2.1491512 × 10^7
Engineering notation 2.1491512 × 10^6

Prime Factorization of 21491512

Prime Factorization 2 × 2 × 2 × 7 × 383777

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5372878
Product of the distinct prime numbers

The prime factorization of 21491512 is 2 × 2 × 2 × 7 × 383777. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 9, 86, 63, 729, 447, 3370, 4386, 33009, 12786, 835446, 874207, 7972111, 3618560, 58486730, 54963325, 339065022, 440442250, 1586245038, 709762849

Basic calculations (n = 21491512)

Multiplication

n×y
n×2 42983024
n×3 64474536
n×4 85966048
n×5 107457560

Division

n÷y
n÷2 10745756
n÷3 7163837.3333333
n÷3 5372878
n÷5 4298302.4

Exponentiation

ny
n2 461885088046144
n3 9.9266089123648E+21
n4 2.1333783455939E+29
n5 4.5849526314872E+36

Nth Root

y√n
2√n 4635.8938728146
3√n 278.02829103246
4√n 68.08739878138
5√n 29.272067242927

Divisors of 21491512

1, 2, 4, 7, 8, 14, 28, 56, 383777, 767554, 1535108, 2686439, 3070216, 5372878, 10745756, 21491512

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21491511
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21491512 can be divided by 16 positive divisors. The sum of these divisors (counting 21491512) is 1, the average is 0.0625.

Base conversion 21491512

Base System Value
2 Binary 1010001111110111100111000
3 Ternary 1111102212210221
4 Quaternary 1101332330320
5 Quinary 21000212022
6 Senary 2044345424
8 Octal 121767470
10 Decimal 21491512
12 Duodecimal 7245274
16 Hexadecimal 147ef38
20 Vigesimal 6e68fc
36 Base36 csmyg

Cryptographic Hash Functions

md5 5437126fef0b9f6d5e859560c7a54a00
sha1 4fda661a57f4bdcbdea40b8d1ec922e92a226f75
sha256 3c7f27ec6ade380e33ee47210dcb9a385c94163901239a2d64c4582a58a1f90a
sha512 e589f01cc30a3fe6b00356b7bc6ea307ecf2a95c791d74325c43c76f6e283c45721dec7084f3f96ca0ee83b0611847cb6a686e4a46bb41faa9c59bead30b3b9e
ripemd-160 63142a8b08a007df3ae7429ec8f9a2ee9bde23ba

21491512 as geometric shapes

Circle

Radius = n
Diameter 42983024
Circumference 135035152.42747
Area 1.4510547994084E+15

Sphere

Radius = n
Volume 4.1580482178859E+22
Surface area 5.8042191976338E+15
Circumference 135035152.42747

Square

Length = n
Perimeter 85966048
Area 461885088046144
Diagonal 30393587.746304

Cube

Length = n
Surface area 2771310528276864
Volume 9.9266089123648E+21
Space diagonal 37224390.715476

Equilateral Triangle

Length = n
Perimeter 64474536
Area 2.0000210993859E+14
Altitude 18612195.357738

Triangular Pyramid

Length = n
Surface area 2.0000210993859E+14
Volume 1.1698620793533E+21
Height 10131195.915435