21491454 (number)

21491454 is an even 8-digits composite number following 21491453 and preceding 21491455. In scientific notation, it is written as 2.1491454 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 7132608 positive integers (up to 21491454) that are relatively prime to 21491454.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1491454 × 10^7
Engineering notation 2.1491454 × 10^6

Prime Factorization of 21491454

Prime Factorization 2 × 3 × 233 × 15373

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491454
Product of the distinct prime numbers

The prime factorization of 21491454 is 2 × 3 × 233 × 15373. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 1, 42, 78, 765, 35, 8846, 3448, 46199, 45930, 774520, 301907, 3579579, 4410821, 67671724, 39972265, 662636030, 518600089, 1240094030, 3257998379

Basic calculations (n = 21491454)

Multiplication

n×y
n×2 42982908
n×3 64474362
n×4 85965816
n×5 107457270

Division

n÷y
n÷2 10745727
n÷3 7163818
n÷3 5372863.5
n÷5 4298290.8

Exponentiation

ny
n2 461882595034116
n3 9.9265285445763E+21
n4 2.1333553159545E+29
n5 4.5848907638491E+36

Nth Root

y√n
2√n 4635.8876172746
3√n 278.02804092356
4√n 68.087352843789
5√n 29.272051443371

Divisors of 21491454

1, 2, 3, 6, 233, 466, 699, 1398, 15373, 30746, 46119, 92238, 3581909, 7163818, 10745727, 21491454

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 -21491453
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 21491454 can be divided by 16 positive divisors. The sum of these divisors (counting 21491454) is 1, the average is 0.0625.

Base conversion 21491454

Base System Value
2 Binary 1010001111110111011111110
3 Ternary 1111102212201210
4 Quaternary 1101332323332
5 Quinary 21000211304
6 Senary 2044345250
8 Octal 121767376
10 Decimal 21491454
12 Duodecimal 7245226
16 Hexadecimal 147eefe
20 Vigesimal 6e68ce
36 Base36 csmwu

Cryptographic Hash Functions

md5 d2e08e3ee3e21082f1248735becfed47
sha1 06e6f2e460d2305faa4b8439a57cf0399f64b367
sha256 5a245475d4757cc3db83fa45daed0673c6eec60b0c409a72079bec2baaa74f78
sha512 b86cc9fbaff7619fa6d1351352a5d02e82e694c6abec2a5b2f59910b8d84294a9cc4d5303158d357cd5342ccc5a4014bcda03e25a9d6b435e4541ed7da905348
ripemd-160 4952f016f0381617ecd0bf96bbefe40264f2cb6b

21491454 as geometric shapes

Circle

Radius = n
Diameter 42982908
Circumference 135034788.00273
Area 1.4510469673802E+15

Sphere

Radius = n
Volume 4.1580145535054E+22
Surface area 5.8041878695207E+15
Circumference 135034788.00273

Square

Length = n
Perimeter 85965816
Area 461882595034116
Diagonal 30393505.721918

Cube

Length = n
Surface area 2771295570204696
Volume 9.9265285445763E+21
Space diagonal 37224290.256529

Equilateral Triangle

Length = n
Perimeter 64474362
Area 2.0000103043271E+14
Altitude 18612145.128265

Triangular Pyramid

Length = n
Surface area 2.0000103043271E+14
Volume 1.1698526079186E+21
Height 10131168.573973