18887980 (number)

18887980 is an even 8-digits composite number following 18887979 and preceding 18887981. In scientific notation, it is written as 1.8887980 × 10^7. The sum of its digits is 49. It has a total of 4 prime factors and 12 positive divisors. There are 7555184 positive integers (up to 18887980) that are relatively prime to 18887980.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.8887980 × 10^7
Engineering notation 1.8887980 × 10^6

Prime Factorization of 18887980

Prime Factorization 2 × 2 × 5 × 944399

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 9443990
Product of the distinct prime numbers

The prime factorization of 18887980 is 2 × 2 × 5 × 944399. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 9, 81, 7, 584, 67, 388, 7721, 28151, 36928, 856623, 402738, 4562430, 2095116, 25771106, 53966736, 137559149, 7555014, 5593944993, 6385718036

Basic calculations (n = 18887980)

Multiplication

n×y
n×2 37775960
n×3 56663940
n×4 75551920
n×5 94439900

Division

n÷y
n÷2 9443990
n÷3 6295993.3333333
n÷3 4721995
n÷5 3777596

Exponentiation

ny
n2 356755788480400
n3 6.738396197702E+21
n4 1.2727469261427E+29
n5 2.4039618486045E+36

Nth Root

y√n
2√n 4346.0303726504
3√n 266.31471973221
4√n 65.924429255401
5√n 28.525752043771

Divisors of 18887980

1, 2, 4, 5, 10, 20, 944399, 1888798, 3777596, 4721995, 9443990, 18887980

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 -18887979
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 18887980 can be divided by 12 positive divisors. The sum of these divisors (counting 18887980) is 1, the average is 0.083333333333333.

Base conversion 18887980

Base System Value
2 Binary 1001000000011010100101100
3 Ternary 1022112121102211
4 Quaternary 1020003110230
5 Quinary 14313403410
6 Senary 1512500204
8 Octal 110032454
10 Decimal 18887980
12 Duodecimal 63aa664
16 Hexadecimal 120352c
20 Vigesimal 5i0jj0
36 Base36 b8u24

Cryptographic Hash Functions

md5 8ebd6c619971f026cddba652e6245932
sha1 6033afc715aa4353864030b5f1368dc9db7a7b33
sha256 4db5f2692af60ae59aa0089db2a644887ec8bacf91312cb9ce69a161f4b56ee9
sha512 5a69ae92dda722827edde14ef07f201a2da8c37889beed17120423e19d0006453115a259d6f7a3ea88ba3fbb3c8e1e2a571063b911f5c5463519f3840a401cff
ripemd-160 fd97ae08b32f337bb0b12d42691c745ef018e005

18887980 as geometric shapes

Circle

Radius = n
Diameter 37775960
Circumference 118676678.4183
Area 1.1207813642157E+15

Sphere

Radius = n
Volume 2.8225727988904E+22
Surface area 4.4831254568626E+15
Circumference 118676678.4183

Square

Length = n
Perimeter 75551920
Area 356755788480400
Diagonal 26711637.481832

Cube

Length = n
Surface area 2140534730882400
Volume 6.738396197702E+21
Space diagonal 32714941.012345

Equilateral Triangle

Length = n
Perimeter 56663940
Area 1.5447978788559E+14
Altitude 16357470.506172

Triangular Pyramid

Length = n
Surface area 1.5447978788559E+14
Volume 7.9412760761946E+20
Height 8903879.1606106