21542445 (number)

21542445 is an odd 8-digits composite number following 21542444 and preceding 21542446. In scientific notation, it is written as 2.1542445 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 11454048 positive integers (up to 21542445) that are relatively prime to 21542445.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred forty-two thousand four hundred forty-five

Notation

Scientific notation 2.1542445 × 10^7
Engineering notation 2.1542445 × 10^6

Prime Factorization of 21542445

Prime Factorization 15 × 3 × 983 × 487

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21542445
Product of the distinct prime numbers

The prime factorization of 21542445 is 15 × 3 × 983 × 487. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 10, 34, 60, 823, 692, 7229, 6151, 36995, 66275, 655873, 279224, 4639239, 9124225, 91077064, 5972554, 434798765, 658174166, 7138713625, 2100877796

Basic calculations (n = 21542445)

Multiplication

n×y
n×2 43084890
n×3 64627335
n×4 86169780
n×5 107712225

Division

n÷y
n÷2 10771222.5
n÷3 7180815
n÷3 5385611.25
n÷5 4308489

Exponentiation

ny
n2 464076936578025
n3 9.9973518820006E+21
n4 2.1536740306364E+29
n5 4.6395404352914E+36

Nth Root

y√n
2√n 4641.3839530899
3√n 278.24775198403
4√n 68.127703271796
5√n 29.285928555922

Divisors of 21542445

1, 3, 15, 45, 487, 983, 1461, 2949, 7305, 14745, 21915, 44235, 478721, 1436163, 7180815, 21542445

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 -21542444
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 21542445 can be divided by 16 positive divisors. The sum of these divisors (counting 21542445) is 1, the average is 0.0625.

Base conversion 21542445

Base System Value
2 Binary 1010010001011011000101101
3 Ternary 1111112110200100
4 Quaternary 1102023120231
5 Quinary 21003324240
6 Senary 2045421313
8 Octal 122133055
10 Decimal 21542445
12 Duodecimal 726a839
16 Hexadecimal 148b62d
20 Vigesimal 6ecg25
36 Base36 ctq99

Cryptographic Hash Functions

md5 c2c5ef3a2f15b99e4f1cc30c4bf14e95
sha1 f7b09a96beedbb46e216355ef99b034861a2dced
sha256 875642e8e3e9104f2b5df0e9900cfc472de6bccd7985a9998ce38fc2922c0480
sha512 98477fb541c075721e9f5107fc983bad0ad48de298ef0f4cd5c9eafd8ad8d6f8aaec98efa4f1a648d6894b8a48961e7e725c743cdda800ecf6cb8dbf0cfa959f
ripemd-160 07c0d4d76e8c8a78e34ad8055b5fd53bd07159aa

21542445 as geometric shapes

Circle

Radius = n
Diameter 43084890
Circumference 135355173.90472
Area 1.457940694654E+15

Sphere

Radius = n
Volume 4.1876809637127E+22
Surface area 5.8317627786159E+15
Circumference 135355173.90472

Square

Length = n
Perimeter 86169780
Area 464076936578025
Diagonal 30465617.885676

Cube

Length = n
Surface area 2784461619468150
Volume 9.9973518820006E+21
Space diagonal 37312609.259258

Equilateral Triangle

Length = n
Perimeter 64627335
Area 2.0095120819351E+14
Altitude 18656304.629629

Triangular Pyramid

Length = n
Surface area 2.0095120819351E+14
Volume 1.1781992182785E+21
Height 10155205.961892