18881385 (number)

18881385 is an odd 8-digits composite number following 18881384 and preceding 18881386. In scientific notation, it is written as 1.8881385 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 9927680 positive integers (up to 18881385) that are relatively prime to 18881385.

Interesting facts

Basic properties

Name

Name eighteen million eight hundred eighty-one thousand three hundred eighty-five

Notation

Scientific notation 1.8881385 × 10^7
Engineering notation 1.8881385 × 10^6

Prime Factorization of 18881385

Prime Factorization 3 × 5 × 71 × 17729

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18881385
Product of the distinct prime numbers

The prime factorization of 18881385 is 3 × 5 × 71 × 17729. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 4, 41, 31, 355, 583, 9033, 8064, 18386, 43115, 827745, 84180, 1216422, 8809078, 11487713, 53986229, 121017664, 992931373, 9636446173, 9390957681

Basic calculations (n = 18881385)

Multiplication

n×y
n×2 37762770
n×3 56644155
n×4 75525540
n×5 94406925

Division

n÷y
n÷2 9440692.5
n÷3 6293795
n÷3 4720346.25
n÷5 3776277

Exponentiation

ny
n2 356506699518225
n3 6.7313402486829E+21
n4 1.2709702680138E+29
n5 2.3997678953921E+36

Nth Root

y√n
2√n 4345.2715680381
3√n 266.28372029882
4√n 65.918673894717
5√n 28.523759733158

Divisors of 18881385

1, 3, 5, 15, 71, 213, 355, 1065, 17729, 53187, 88645, 265935, 1258759, 3776277, 6293795, 18881385

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 -18881384
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 18881385 can be divided by 16 positive divisors. The sum of these divisors (counting 18881385) is 1, the average is 0.0625.

Base conversion 18881385

Base System Value
2 Binary 1001000000001101101101001
3 Ternary 1022112021101120
4 Quaternary 1020001231221
5 Quinary 14313201020
6 Senary 1512405453
8 Octal 110015551
10 Decimal 18881385
12 Duodecimal 63a6889
16 Hexadecimal 1201b69
20 Vigesimal 5i0395
36 Base36 b8oyx

Cryptographic Hash Functions

md5 60d933caca16da8c95c57d0f5f0a878d
sha1 f6e19a339a06971e774aebc735e77f9d49195ab8
sha256 1b5016b388b9a13bf05d5dfbdd5b7441e6d632e5ec3c747c2e78b88f2baa4830
sha512 da407efc4dd384c0952d53de83aa1b1370d3c23176aad629a9a817937472c782f11d34bd44a1fe4a794fe66efb37a76615661b28bfa947e462f1ad7f4a843abb
ripemd-160 22957babca08ea2fe126d1b1f7bf2867e784d7dd

18881385 as geometric shapes

Circle

Radius = n
Diameter 37762770
Circumference 118635240.8112
Area 1.119998828162E+15

Sphere

Radius = n
Volume 2.8196172098767E+22
Surface area 4.479995312648E+15
Circumference 118635240.8112

Square

Length = n
Perimeter 75525540
Area 356506699518225
Diagonal 26702310.743388

Cube

Length = n
Surface area 2139040197109350
Volume 6.7313402486829E+21
Space diagonal 32703518.137269

Equilateral Triangle

Length = n
Perimeter 56644155
Area 1.5437192920106E+14
Altitude 16351759.068634

Triangular Pyramid

Length = n
Surface area 1.5437192920106E+14
Volume 7.9329605605294E+20
Height 8900770.247796