21491754 (number)

21491754 is an even 8-digits composite number following 21491753 and preceding 21491755. In scientific notation, it is written as 2.1491754 × 10^7. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 7151760 positive integers (up to 21491754) that are relatively prime to 21491754.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491754 × 10^7
Engineering notation 2.1491754 × 10^6

Prime Factorization of 21491754

Prime Factorization 2 × 3 × 661 × 5419

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491754
Product of the distinct prime numbers

The prime factorization of 21491754 is 2 × 3 × 661 × 5419. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 8, 71, 93, 455, 951, 2564, 3718, 93345, 28415, 332467, 454513, 4327324, 8360735, 172663, 57373103, 162009822, 932956139, 4546394860, 4254965179

Basic calculations (n = 21491754)

Multiplication

n×y
n×2 42983508
n×3 64475262
n×4 85967016
n×5 107458770

Division

n÷y
n÷2 10745877
n÷3 7163918
n÷3 5372938.5
n÷5 4298350.8

Exponentiation

ny
n2 461895489996516
n3 9.9269442447146E+21
n4 2.1334744367912E+29
n5 4.5852107760805E+36

Nth Root

y√n
2√n 4635.9199734249
3√n 278.02933458544
4√n 68.087590451013
5√n 29.272133164844

Divisors of 21491754

1, 2, 3, 6, 661, 1322, 1983, 3966, 5419, 10838, 16257, 32514, 3581959, 7163918, 10745877, 21491754

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 -21491753
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 21491754 can be divided by 16 positive divisors. The sum of these divisors (counting 21491754) is 1, the average is 0.0625.

Base conversion 21491754

Base System Value
2 Binary 1010001111111000000101010
3 Ternary 1111102220010220
4 Quaternary 1101333000222
5 Quinary 21000214004
6 Senary 2044350510
8 Octal 121770052
10 Decimal 21491754
12 Duodecimal 7245436
16 Hexadecimal 147f02a
20 Vigesimal 6e697e
36 Base36 csn56

Cryptographic Hash Functions

md5 0048fe7cc6dd8d2dc6d3a70b2e187d18
sha1 a6897d6e971548a042d256d4e3c16b64c70167d3
sha256 f7eb6a038442a236ff318a0f17df7998fd6b7d670ca9da9f7915f1b2edc75711
sha512 3df381d817cf182d9bb4762a91593237ce1094374ad3e0a4990d688b349f0c7b6dc8658a3f026414d86d511032f985531883878aa2b8727e81685a708a7c4f3f
ripemd-160 1b04324e8c16ff53d2fa528f04192ce9c68e31bd

21491754 as geometric shapes

Circle

Radius = n
Diameter 42983508
Circumference 135036672.95832
Area 1.4510874780993E+15

Sphere

Radius = n
Volume 4.1581886815721E+22
Surface area 5.8043499123972E+15
Circumference 135036672.95832

Square

Length = n
Perimeter 85967016
Area 461895489996516
Diagonal 30393929.985986

Cube

Length = n
Surface area 2771372939979096
Volume 9.9269442447146E+21
Space diagonal 37224809.871772

Equilateral Triangle

Length = n
Perimeter 64475262
Area 2.0000661411522E+14
Altitude 18612404.935886

Triangular Pyramid

Length = n
Surface area 2.0000661411522E+14
Volume 1.1699015986497E+21
Height 10131309.995329