15721390 (number)

15721390 is an even 8-digits composite number following 15721389 and preceding 15721391. In scientific notation, it is written as 1.5721390 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 6169696 positive integers (up to 15721390) that are relatively prime to 15721390.

Interesting facts

Basic properties

Name

Name fifteen million seven hundred twenty-one thousand three hundred ninety

Notation

Scientific notation 1.5721390 × 10^7
Engineering notation 1.5721390 × 10^6

Prime Factorization of 15721390

Prime Factorization 2 × 5 × 53 × 29663

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 15721390
Product of the distinct prime numbers

The prime factorization of 15721390 is 2 × 5 × 53 × 29663. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 1, 41, 80, 665, 234, 3987, 6065, 71703, 38234, 750666, 594490, 8342670, 8341051, 5307759, 49745898, 894012485, 26249746, 1011440231, 1839634034

Basic calculations (n = 15721390)

Multiplication

n×y
n×2 31442780
n×3 47164170
n×4 62885560
n×5 78606950

Division

n÷y
n÷2 7860695
n÷3 5240463.3333333
n÷3 3930347.5
n÷5 3144278

Exponentiation

ny
n2 247162103532100
n3 3.8857318228485E+21
n4 6.1089105422413E+28
n5 9.6040565109686E+35

Nth Root

y√n
2√n 3965.0208070072
3√n 250.51302649512
4√n 62.968411183761
5√n 27.497815157267

Divisors of 15721390

1, 2, 5, 10, 53, 106, 265, 530, 29663, 59326, 148315, 296630, 1572139, 3144278, 7860695, 15721390

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 -15721389
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 15721390 can be divided by 16 positive divisors. The sum of these divisors (counting 15721390) is 1, the average is 0.0625.

Base conversion 15721390

Base System Value
2 Binary 111011111110001110101110
3 Ternary 1002120201200201
4 Quaternary 323332032232
5 Quinary 13011041030
6 Senary 1320544114
8 Octal 73761656
10 Decimal 15721390
12 Duodecimal 532203a
16 Hexadecimal efe3ae
20 Vigesimal 4i539a
36 Base36 9cypa

Cryptographic Hash Functions

md5 b0d6d73f0a3ee49ce2d4a10aeffe9310
sha1 4d58fe329aa8ac75eba309e80011707934216b99
sha256 64dc1e89afdfdb36590d27140a8283d311f97e2aaff874e0faf3e1c699bc78ae
sha512 158ca5e0a1bb12a78d61480f145e6d9bbf6cf43e26170efac69b9379b3b0a90a9e94035bc2cefd6ba6bfafce7fbd683c2357cbbc673a56f0a6be11ee1043fedd
ripemd-160 250f514786bfcb4f115e5d138f4bb442acab2bcc

15721390 as geometric shapes

Circle

Radius = n
Diameter 31442780
Circumference 98780406.65644
Area 7.7648264870225E+14

Sphere

Radius = n
Volume 1.6276515397975E+22
Surface area 3.105930594809E+15
Circumference 98780406.65644

Square

Length = n
Perimeter 62885560
Area 247162103532100
Diagonal 22233402.957357

Cube

Length = n
Surface area 1482972621192600
Volume 3.8857318228485E+21
Space diagonal 27230246.245605

Equilateral Triangle

Length = n
Perimeter 47164170
Area 1.070243302558E+14
Altitude 13615123.122803

Triangular Pyramid

Length = n
Surface area 1.070243302558E+14
Volume 4.5793788696809E+20
Height 7411134.3191189