21242757 (number)

21242757 is an odd 8-digits composite number following 21242756 and preceding 21242758. In scientific notation, it is written as 2.1242757 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 13923840 positive integers (up to 21242757) that are relatively prime to 21242757.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred forty-two thousand seven hundred fifty-seven

Notation

Scientific notation 2.1242757 × 10^7
Engineering notation 2.1242757 × 10^6

Prime Factorization of 21242757

Prime Factorization 3 × 113 × 281 × 223

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21242757
Product of the distinct prime numbers

The prime factorization of 21242757 is 3 × 113 × 281 × 223. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 9, 7, 83, 722, 3, 591, 3640, 6052, 9349, 806963, 806917, 6727914, 4193136, 80685749, 61412043, 80709998, 969420195, 1937781521, 493034614

Basic calculations (n = 21242757)

Multiplication

n×y
n×2 42485514
n×3 63728271
n×4 84971028
n×5 106213785

Division

n÷y
n÷2 10621378.5
n÷3 7080919
n÷3 5310689.25
n÷5 4248551.4

Exponentiation

ny
n2 451254724961049
n3 9.5858944674494E+21
n4 2.0363082679967E+29
n5 4.3256801714145E+36

Nth Root

y√n
2√n 4608.9865480385
3√n 276.95143965788
4√n 67.889517217598
5√n 29.203989002974

Divisors of 21242757

1, 3, 113, 223, 281, 339, 669, 843, 25199, 31753, 62663, 75597, 95259, 187989, 7080919, 21242757

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 -21242756
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 21242757 can be divided by 16 positive divisors. The sum of these divisors (counting 21242757) is 1, the average is 0.0625.

Base conversion 21242757

Base System Value
2 Binary 1010001000010001110000101
3 Ternary 1110222020120210
4 Quaternary 1101002032011
5 Quinary 20414232012
6 Senary 2035150033
8 Octal 121021605
10 Decimal 21242757
12 Duodecimal 7145319
16 Hexadecimal 1442385
20 Vigesimal 6cf6hh
36 Base36 cnb0l

Cryptographic Hash Functions

md5 e57a140d4acea71e7b1a59de3ae7fd9b
sha1 c6e63be382309fc4c1086fa1a85d6fcee3977045
sha256 1d719d526be9a3b7502144c9aba60d6a4adb36bc37aff6782c70982733a1e699
sha512 8de65c413cdbd9a7374e233c6e235dcd681411869a8cead5f3412cfc5971b51b0ce467f009717eb4b81ba77fae09b158432c64bcb1466b678ebd870755f023c7
ripemd-160 cd717472f5721fe1bfe989327db2da25606763ec

21242757 as geometric shapes

Circle

Radius = n
Diameter 42485514
Circumference 133472178.66639
Area 1.4176585288353E+15

Sphere

Radius = n
Volume 4.0153300849368E+22
Surface area 5.6706341153413E+15
Circumference 133472178.66639

Square

Length = n
Perimeter 84971028
Area 451254724961049
Diagonal 30041795.051596

Cube

Length = n
Surface area 2707528349766294
Volume 9.5858944674494E+21
Space diagonal 36793534.416839

Equilateral Triangle

Length = n
Perimeter 63728271
Area 1.9539902769701E+14
Altitude 18396767.20842

Triangular Pyramid

Length = n
Surface area 1.9539902769701E+14
Volume 1.1297084969453E+21
Height 10013931.683865