21496781 (number)

21496781 is an odd 8-digits composite number following 21496780 and preceding 21496782. In scientific notation, it is written as 2.1496781 × 10^7. The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors. There are 21199360 positive integers (up to 21496781) that are relatively prime to 21496781.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1496781 × 10^7
Engineering notation 2.1496781 × 10^6

Prime Factorization of 21496781

Prime Factorization 677 × 113 × 281

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21496781
Product of the distinct prime numbers

The prime factorization of 21496781 is 677 × 113 × 281. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 1, 25, 48, 156, 725, 4377, 3721, 53364, 63610, 62825, 463744, 1381272, 5756905, 17097753, 11740330, 631420780, 542704436, 878041715, 7574881269

Basic calculations (n = 21496781)

Multiplication

n×y
n×2 42993562
n×3 64490343
n×4 85987124
n×5 107483905

Division

n÷y
n÷2 10748390.5
n÷3 7165593.6666667
n÷3 5374195.25
n÷5 4299356.2

Exponentiation

ny
n2 462111593361961
n3 9.9339117200631E+21
n4 2.1354712471953E+29
n5 4.5905757732754E+36

Nth Root

y√n
2√n 4636.4621210574
3√n 278.05101025551
4√n 68.091571586044
5√n 29.27350240858

Divisors of 21496781

1, 113, 281, 677, 31753, 76501, 190237, 21496781

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21496780
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21496781 can be divided by 8 positive divisors. The sum of these divisors (counting 21496781) is 1, the average is 0.125.

Base conversion 21496781

Base System Value
2 Binary 1010010000000001111001101
3 Ternary 1111110011001002
4 Quaternary 1102000033031
5 Quinary 21000344111
6 Senary 2044430045
8 Octal 122001715
10 Decimal 21496781
12 Duodecimal 7248325
16 Hexadecimal 14803cd
20 Vigesimal 6e71j1
36 Base36 csr0t

Cryptographic Hash Functions

md5 4f44f2844edb9a08e53c87bba1311724
sha1 0cb009c74566b6b86a3504e6bc61008b1e566fcf
sha256 05093f8965de5c793c9562e2f3eb37cf67d5fab391dff8d34980986a11f3c26a
sha512 553c3b29a2398621002a75461aa56f61798abc5b8e16b345df8f9e17f16d23da1c769c90e9c758b7dc2b290b28fb21010e8d36a3c4b26496416e8801ca92b09f
ripemd-160 b60b7c2a94bd79854b459cad3e220096f3f8c473

21496781 as geometric shapes

Circle

Radius = n
Diameter 42993562
Circumference 135068258.53086
Area 1.4517663868446E+15

Sphere

Radius = n
Volume 4.1611072108213E+22
Surface area 5.8070655473784E+15
Circumference 135068258.53086

Square

Length = n
Perimeter 85987124
Area 462111593361961
Diagonal 30401039.237564

Cube

Length = n
Surface area 2772669560171766
Volume 9.9339117200631E+21
Space diagonal 37233516.891181

Equilateral Triangle

Length = n
Perimeter 64490343
Area 2.0010018961738E+14
Altitude 18616758.445591

Triangular Pyramid

Length = n
Surface area 2.0010018961738E+14
Volume 1.1707227234942E+21
Height 10133679.745855