18388961 (number)

18388961 is an odd 8-digits prime number following 18388960 and preceding 18388962. In scientific notation, it is written as 1.8388961 × 10^7. The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors. There are 18388960 positive integers (up to 18388961) that are relatively prime to 18388961.

Interesting facts

Basic properties

Name

Name eighteen million three hundred eighty-eight thousand nine hundred sixty-one

Notation

Scientific notation 1.8388961 × 10^7
Engineering notation 1.8388961 × 10^6

Prime Factorization of 18388961

Prime Factorization 18388961

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 18388961
Product of the distinct prime numbers

The prime factorization of 18388961 is 18388961. Since it has a total of 1 prime factors.

Most popular turbo-numbers

2, 5, 56, 56, 430, 265, 5979, 8627, 90099, 85568, 228724, 652995, 6947274, 1877607, 13912482, 31466519, 26605640, 962188329, 3944043432, 6282670430

Basic calculations (n = 18388961)

Multiplication

n×y
n×2 36777922
n×3 55166883
n×4 73555844
n×5 91944805

Division

n÷y
n÷2 9194480.5
n÷3 6129653.6666667
n÷3 4597240.25
n÷5 3677792.2

Exponentiation

ny
n2 338153886659521
n3 6.2182986337804E+21
n4 1.1434805106294E+29
n5 2.1027418514224E+36

Nth Root

y√n
2√n 4288.2351847817
3√n 263.94841833528
4√n 65.484617924989
5√n 28.373403768867

Divisors of 18388961

1, 18388961

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 18388962
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 9194481
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4288.2353013798
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999998912391
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18388961 can be divided by 2 positive divisors. The sum of these divisors (counting 18388961) is 18388962, the average is 9194481.

Base conversion 18388961

Base System Value
2 Binary 1000110001001011111100001
3 Ternary 1021121020220122
4 Quaternary 1012021133201
5 Quinary 14201421321
6 Senary 1454050025
8 Octal 106113741
10 Decimal 18388961
12 Duodecimal 61a9915
16 Hexadecimal 11897e1
20 Vigesimal 5eic81
36 Base36 ay50h

Cryptographic Hash Functions

md5 f5674d0c37c6bb796242866c907399c4
sha1 637a90aeb8d395b6072d4776c49555c41c3dee56
sha256 e3891acb902c0c0c29ec7ca9bee0baabac88c86a93413b7f418026508ee7b1d0
sha512 dd4e280e3a04ae119079caa696634040a3ceaa087572d2312ac14d2224f35e151749de0e8f327eb5c8c721a55bbe063d66e128505206923b2920b3e9f66e24ab
ripemd-160 7ae8b70b943d033bed5a9226cb5a053748ef9054

18388961 as geometric shapes

Circle

Radius = n
Diameter 36777922
Circumference 115541249.5695
Area 1.0623417661124E+15

Sphere

Radius = n
Volume 2.6047148407616E+22
Surface area 4.2493670644495E+15
Circumference 115541249.5695

Square

Length = n
Perimeter 73555844
Area 338153886659521
Diagonal 26005918.04415

Cube

Length = n
Surface area 2028923319957126
Volume 6.2182986337804E+21
Space diagonal 31850614.750403

Equilateral Triangle

Length = n
Perimeter 55166883
Area 1.4642492811779E+14
Altitude 15925307.375201

Triangular Pyramid

Length = n
Surface area 1.4642492811779E+14
Volume 7.3283352189819E+20
Height 8668639.34805