21031245 (number)

21031245 is an odd 8-digits composite number following 21031244 and preceding 21031246. In scientific notation, it is written as 2.1031245 × 10^7. The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors. There are 11216448 positive integers (up to 21031245) that are relatively prime to 21031245.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1031245 × 10^7
Engineering notation 2.1031245 × 10^6

Prime Factorization of 21031245

Prime Factorization 27 × 3 × 5 × 51929

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21031245
Product of the distinct prime numbers

The prime factorization of 21031245 is 27 × 3 × 5 × 51929. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 7, 20, 28, 376, 452, 3805, 8396, 72822, 7673, 958097, 609576, 1229771, 3949974, 59264033, 71039862, 233408512, 234089858, 3892863805, 7926630733

Basic calculations (n = 21031245)

Multiplication

n×y
n×2 42062490
n×3 63093735
n×4 84124980
n×5 105156225

Division

n÷y
n÷2 10515622.5
n÷3 7010415
n÷3 5257811.25
n÷5 4206249

Exponentiation

ny
n2 442313266250025
n3 9.3023986692545E+21
n4 1.9564102550077E+29
n5 4.1145743393578E+36

Nth Root

y√n
2√n 4585.9835368217
3√n 276.02917933465
4√n 67.719890259965
5√n 29.145599749534

Divisors of 21031245

1, 3, 5, 15, 27, 81, 135, 405, 51929, 155787, 259645, 778935, 1402083, 4206249, 7010415, 21031245

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 -21031244
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 21031245 can be divided by 16 positive divisors. The sum of these divisors (counting 21031245) is 1, the average is 0.0625.

Base conversion 21031245

Base System Value
2 Binary 1010000001110100101001101
3 Ternary 1110120111110000
4 Quaternary 1100032211031
5 Quinary 20340444440
6 Senary 2030434513
8 Octal 120164515
10 Decimal 21031245
12 Duodecimal 7062a39
16 Hexadecimal 140e94d
20 Vigesimal 6b8i25
36 Base36 cirt9

Cryptographic Hash Functions

md5 cda0fc11db979a2e816dcc98ec2ba457
sha1 3ab6d5fa332802c76429f5a59ff2b631c2669620
sha256 f3d0fece0d95fcb9eae59d44e8b1bbc43f09f48566ee24cddc0bac7d1960ab25
sha512 9fca2a9457528ca0efc3985c59bb0d14cc6d6a649ede1ebe8466b2b97c41a95fb1ef16bb662224a7cac371b534b172904e996c790613c1bce16557f7823b89b4
ripemd-160 f893ff06ae6f2b8e2c4a9da0cb63e4ece8908131

21031245 as geometric shapes

Circle

Radius = n
Diameter 42062490
Circumference 132143209.57569
Area 1.3895681078364E+15

Sphere

Radius = n
Volume 3.8965796426791E+22
Surface area 5.5582724313455E+15
Circumference 132143209.57569

Square

Length = n
Perimeter 84124980
Area 442313266250025
Diagonal 29742671.912591

Cube

Length = n
Surface area 2653879597500150
Volume 9.3023986692545E+21
Space diagonal 36427184.886429

Equilateral Triangle

Length = n
Perimeter 63093735
Area 1.915272625017E+14
Altitude 18213592.443214

Triangular Pyramid

Length = n
Surface area 1.915272625017E+14
Volume 1.0962981967218E+21
Height 9914223.9708638