18887947 (number)

18887947 is an odd 8-digits composite number following 18887946 and preceding 18887948. In scientific notation, it is written as 1.8887947 × 10^7. The sum of its digits is 52. It has a total of 4 prime factors and 12 positive divisors. There are 17184960 positive integers (up to 18887947) that are relatively prime to 18887947.

Interesting facts

Basic properties

Name

Name eighteen million eight hundred eighty-seven thousand nine hundred forty-seven

Notation

Scientific notation 1.8887947 × 10^7
Engineering notation 1.8887947 × 10^6

Prime Factorization of 18887947

Prime Factorization 13 × 13 × 73 × 1531

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1452919
Product of the distinct prime numbers

The prime factorization of 18887947 is 13 × 13 × 73 × 1531. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 5, 93, 16, 483, 129, 2310, 9353, 58100, 30335, 29248, 596123, 5882065, 9524707, 79729971, 31303035, 625130106, 104948572, 8994125342, 1431346946

Basic calculations (n = 18887947)

Multiplication

n×y
n×2 37775894
n×3 56663841
n×4 75551788
n×5 94439735

Division

n÷y
n÷2 9443973.5
n÷3 6295982.3333333
n÷3 4721986.75
n÷5 3777589.4

Exponentiation

ny
n2 356754541874809
n3 6.7383608789407E+21
n4 1.272738031483E+29
n5 2.4039408483536E+36

Nth Root

y√n
2√n 4346.0265760807
3√n 266.3145646355
4√n 65.924400460533
5√n 28.525742076051

Divisors of 18887947

1, 13, 73, 169, 949, 1531, 12337, 19903, 111763, 258739, 1452919, 18887947

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 -18887946
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 18887947 can be divided by 12 positive divisors. The sum of these divisors (counting 18887947) is 1, the average is 0.083333333333333.

Base conversion 18887947

Base System Value
2 Binary 1001000000011010100001011
3 Ternary 1022112121101121
4 Quaternary 1020003110023
5 Quinary 14313403242
6 Senary 1512500111
8 Octal 110032413
10 Decimal 18887947
12 Duodecimal 63aa637
16 Hexadecimal 120350b
20 Vigesimal 5i0jh7
36 Base36 b8u17

Cryptographic Hash Functions

md5 4734c6a7c620c017e639d815d4e40b96
sha1 7cbb74f5bad091c42891b1af10d91e6abd4de133
sha256 0acef4bf4d5abb0ef80bf9f9a5ea7d576e54f7efba3a3d93a8700000e4280286
sha512 f7877f19f0eabf144cd1395db022ec4812e5ede1c9ae93d8dd16099635f9563c59a027ba9411cd0a05593ac5aebf9efaacd132632d07df211415005a983cafa0
ripemd-160 9ffaa80d99dad9c20beb87d24112d2179c61402d

18887947 as geometric shapes

Circle

Radius = n
Diameter 37775894
Circumference 118676471.07319
Area 1.1207774478887E+15

Sphere

Radius = n
Volume 2.8225580046023E+22
Surface area 4.4831097915548E+15
Circumference 118676471.07319

Square

Length = n
Perimeter 75551788
Area 356754541874809
Diagonal 26711590.812784

Cube

Length = n
Surface area 2140527251248854
Volume 6.7383608789407E+21
Space diagonal 32714883.854668

Equilateral Triangle

Length = n
Perimeter 56663841
Area 1.5447924808953E+14
Altitude 16357441.927334

Triangular Pyramid

Length = n
Surface area 1.5447924808953E+14
Volume 7.9412344526352E+20
Height 8903863.6042614