21491378 (number)

21491378 is an even 8-digits composite number following 21491377 and preceding 21491379. In scientific notation, it is written as 2.1491378 × 10^7. The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors. There are 10275216 positive integers (up to 21491378) that are relatively prime to 21491378.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand three hundred seventy-eight

Notation

Scientific notation 2.1491378 × 10^7
Engineering notation 2.1491378 × 10^6

Prime Factorization of 21491378

Prime Factorization 2 × 29 × 107 × 3463

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21491378
Product of the distinct prime numbers

The prime factorization of 21491378 is 2 × 29 × 107 × 3463. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 4, 37, 89, 428, 963, 7945, 3556, 19086, 28649, 970352, 27070, 1330481, 9248731, 55218646, 1393200, 153455019, 150902525, 1887745776, 6872414017

Basic calculations (n = 21491378)

Multiplication

n×y
n×2 42982756
n×3 64474134
n×4 85965512
n×5 107456890

Division

n÷y
n÷2 10745689
n÷3 7163792.6666667
n÷3 5372844.5
n÷5 4298275.6

Exponentiation

ny
n2 461879328338884
n3 9.9264232357171E+21
n4 2.1333251394678E+29
n5 4.5848096969205E+36

Nth Root

y√n
2√n 4635.8794203473
3√n 278.02771319397
4√n 68.087292649564
5√n 29.272030740453

Divisors of 21491378

1, 2, 29, 58, 107, 214, 3103, 3463, 6206, 6926, 100427, 200854, 370541, 741082, 10745689, 21491378

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 -21491377
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 21491378 can be divided by 16 positive divisors. The sum of these divisors (counting 21491378) is 1, the average is 0.0625.

Base conversion 21491378

Base System Value
2 Binary 1010001111110111010110010
3 Ternary 1111102212121222
4 Quaternary 1101332322302
5 Quinary 21000211003
6 Senary 2044345042
8 Octal 121767262
10 Decimal 21491378
12 Duodecimal 7245182
16 Hexadecimal 147eeb2
20 Vigesimal 6e688i
36 Base36 csmuq

Cryptographic Hash Functions

md5 f30695f4f6714c0603b59c32eabf5862
sha1 fdaa7ef837a0326b941e6cd634861ec4a081ca46
sha256 71a3e7f5a06924707ae6f2968bb28914d6c34c9bf5fb9cc9d1034b45b9b0cfcc
sha512 7c6b187c9508f9b363108e729ef31423c238752de301a87917c28dfa0aa653090a539bb0c4cbda178d95e4aa7b572355502fe76440a48acb40f86a3465e657dd
ripemd-160 850fb67e4245189fc054cebba65ca7e62ef6fbf9

21491378 as geometric shapes

Circle

Radius = n
Diameter 42982756
Circumference 135034310.48064
Area 1.4510367047544E+15

Sphere

Radius = n
Volume 4.1579704418336E+22
Surface area 5.8041468190177E+15
Circumference 135034310.48064

Square

Length = n
Perimeter 85965512
Area 461879328338884
Diagonal 30393398.241687

Cube

Length = n
Surface area 2771275970033304
Volume 9.9264232357171E+21
Space diagonal 37224158.620668

Equilateral Triangle

Length = n
Perimeter 64474134
Area 1.9999961591218E+14
Altitude 18612079.310334

Triangular Pyramid

Length = n
Surface area 1.9999961591218E+14
Volume 1.1698401971505E+21
Height 10131132.747229