15978 (number)

15978 is an even 5-digits composite number following 15977 and preceding 15979. In scientific notation, it is written as 1.5978 × 10^4. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 5324 positive integers (up to 15978) that are relatively prime to 15978.

Interesting facts

Basic properties

Name

Name fifteen thousand nine hundred seventy-eight

Notation

Scientific notation 1.5978 × 10^4
Engineering notation 1.5978 × 10^3

Prime Factorization of 15978

Prime Factorization 2 × 3 × 2663

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 15978
Product of the distinct prime numbers

The prime factorization of 15978 is 2 × 3 × 2663. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 6, 42, 90, 978, 261, 5783, 8512, 40253, 87902, 772261, 277826, 2260008, 9525567, 69517607, 39505078, 515266286, 185537997, 3290477276, 8205207375

Basic calculations (n = 15978)

Multiplication

n×y
n×2 31956
n×3 47934
n×4 63912
n×5 79890

Division

n÷y
n÷2 7989
n÷3 5326
n÷3 3994.5
n÷5 3195.6

Exponentiation

ny
n2 255296484
n3 4079127221352
n4 65176294742762256
n5 1.0413868373999E+21

Nth Root

y√n
2√n 126.40411385711
3√n 25.186866424141
4√n 11.24295841214
5√n 6.9295412339855

Divisors of 15978

1, 2, 3, 6, 2663, 5326, 7989, 15978

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -15977
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 15978 can be divided by 8 positive divisors. The sum of these divisors (counting 15978) is 1, the average is 0.125.

Base conversion 15978

Base System Value
2 Binary 11111001101010
3 Ternary 210220210
4 Quaternary 3321222
5 Quinary 1002403
6 Senary 201550
8 Octal 37152
10 Decimal 15978
12 Duodecimal 92b6
16 Hexadecimal 3e6a
20 Vigesimal 1jii
36 Base36 cbu

Cryptographic Hash Functions

md5 8c2290e2857508c014bfd88baaaefbbc
sha1 c72774819488f5a37463790690773d4f0c6cd089
sha256 756375d17c7fdd403eb7af39d08db2638af6f8da256b354a620393905867c2a3
sha512 8f04e97e16fc8d2caedf47daea7f5ca44deeb82e60302c5278cbe0ea57c04541e47e343aba3b9ca0b10d5df975dd2b5f5319abeb0ece46f4929ac63605c1e91a
ripemd-160 8f80a7bc8aeaca78220e7f8444dad8cbdbbeb6d7

15978 as geometric shapes

Circle

Radius = n
Diameter 31956
Circumference 100392.73483812
Area 802037558.6217

Sphere

Radius = n
Volume 17086608148877
Surface area 3208150234.4868
Circumference 100392.73483812

Square

Length = n
Perimeter 63912
Area 255296484
Diagonal 22596.304299597

Cube

Length = n
Surface area 1531778904
Volume 4079127221352
Space diagonal 27674.707803336

Equilateral Triangle

Length = n
Perimeter 47934
Area 110546620.32042
Altitude 13837.353901668

Triangular Pyramid

Length = n
Surface area 110546620.32042
Volume 480729753256.77
Height 7532.1014331991