15721428 (number)

15721428 is an even 8-digits composite number following 15721427 and preceding 15721429. In scientific notation, it is written as 1.5721428 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors. There are 5240472 positive integers (up to 15721428) that are relatively prime to 15721428.

Interesting facts

Basic properties

Name

Name fifteen million seven hundred twenty-one thousand four hundred twenty-eight

Notation

Scientific notation 1.5721428 × 10^7
Engineering notation 1.5721428 × 10^6

Prime Factorization of 15721428

Prime Factorization 2 × 2 × 3 × 1310119

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7860714
Product of the distinct prime numbers

The prime factorization of 15721428 is 2 × 2 × 3 × 1310119. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 6, 87, 77, 433, 248, 7763, 8400, 22402, 15724, 605028, 893370, 918443, 8670473, 5752178, 72065031, 645272987, 464694199, 1533612391, 3524865582

Basic calculations (n = 15721428)

Multiplication

n×y
n×2 31442856
n×3 47164284
n×4 62885712
n×5 78607140

Division

n÷y
n÷2 7860714
n÷3 5240476
n÷3 3930357
n÷5 3144285.6

Exponentiation

ny
n2 247163298359184
n3 3.8857599993964E+21
n4 6.1089696055791E+28
n5 9.60417258083E+35

Nth Root

y√n
2√n 3965.0255989085
3√n 250.51322833239
4√n 62.968449233791
5√n 27.497828450188

Divisors of 15721428

1, 2, 3, 4, 6, 12, 1310119, 2620238, 3930357, 5240476, 7860714, 15721428

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -15721427
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 15721428 can be divided by 12 positive divisors. The sum of these divisors (counting 15721428) is 1, the average is 0.083333333333333.

Base conversion 15721428

Base System Value
2 Binary 111011111110001111010100
3 Ternary 1002120201202010
4 Quaternary 323332033110
5 Quinary 13011041203
6 Senary 1320544220
8 Octal 73761724
10 Decimal 15721428
12 Duodecimal 5322070
16 Hexadecimal efe3d4
20 Vigesimal 4i53b8
36 Base36 9cyqc

Cryptographic Hash Functions

md5 9e9378d2ee99a49893d528a2ff2c68e0
sha1 9dd6e837f2b3689379a15450890dc9e83301e57c
sha256 8cb938f30fa147d728f13b8e9d7ef53e2357922371c743010308d34e620e3d2c
sha512 dc607ce37f3be628dc6a056ef3c1cf42ccc8ef573809904a230ed608393dce73374bc1f7f8f6f16be67919a145f577e425385ee3a3f380d9f235a75bf83d1ad0
ripemd-160 f636ab8953b50c778f463a194b3d84e94ea7598e

15721428 as geometric shapes

Circle

Radius = n
Diameter 31442856
Circumference 98780645.417482
Area 7.7648640236223E+14

Sphere

Radius = n
Volume 1.6276633423623E+22
Surface area 3.1059456094489E+15
Circumference 98780645.417482

Square

Length = n
Perimeter 62885712
Area 247163298359184
Diagonal 22233456.697472

Cube

Length = n
Surface area 1482979790155104
Volume 3.8857599993964E+21
Space diagonal 27230312.063536

Equilateral Triangle

Length = n
Perimeter 47164284
Area 1.070248476311E+14
Altitude 13615156.031768

Triangular Pyramid

Length = n
Surface area 1.070248476311E+14
Volume 4.5794120760611E+20
Height 7411152.2324907