18831421 (number)

18831421 is an odd 8-digits composite number following 18831420 and preceding 18831422. In scientific notation, it is written as 1.8831421 × 10^7. The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors. There are 15776640 positive integers (up to 18831421) that are relatively prime to 18831421.

Interesting facts

Basic properties

Name

Name eighteen million eight hundred thirty-one thousand four hundred twenty-one

Notation

Scientific notation 1.8831421 × 10^7
Engineering notation 1.8831421 × 10^6

Prime Factorization of 18831421

Prime Factorization 7 × 89 × 181 × 167

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18831421
Product of the distinct prime numbers

The prime factorization of 18831421 is 7 × 89 × 181 × 167. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 6, 16, 78, 411, 980, 1629, 7464, 46149, 6505, 944677, 54172, 8865581, 8168861, 34058065, 23362648, 579576028, 427384142, 6191073620, 7708333240

Basic calculations (n = 18831421)

Multiplication

n×y
n×2 37662842
n×3 56494263
n×4 75325684
n×5 94157105

Division

n÷y
n÷2 9415710.5
n÷3 6277140.3333333
n÷3 4707855.25
n÷5 3766284.2

Exponentiation

ny
n2 354622416879241
n3 6.6780440282905E+21
n4 1.2575705855327E+29
n5 2.3681841133384E+36

Nth Root

y√n
2√n 4339.5185216796
3√n 266.04863244824
4√n 65.875021986179
5√n 28.508647790493

Divisors of 18831421

1, 7, 89, 167, 181, 623, 1169, 1267, 14863, 16109, 30227, 104041, 112763, 211589, 2690203, 18831421

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 -18831420
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 18831421 can be divided by 16 positive divisors. The sum of these divisors (counting 18831421) is 1, the average is 0.0625.

Base conversion 18831421

Base System Value
2 Binary 1000111110101100000111101
3 Ternary 1022102201212001
4 Quaternary 1013311200331
5 Quinary 14310101141
6 Senary 1511342301
8 Octal 107654075
10 Decimal 18831421
12 Duodecimal 6381991
16 Hexadecimal 11f583d
20 Vigesimal 5hdib1
36 Base36 b7mf1

Cryptographic Hash Functions

md5 9e02c9390e6b763226dc17f028156ea6
sha1 c19637c127e6274b46705b070499fb5ab227453d
sha256 6e11de2621f9a32ba00f7e6722ae113245dc0e8de3ca33212354b14c04c90422
sha512 ccff2a85ebba007073c8027444841176da34036c9e0117864ef28098923806d9f38bfb804b3d1b83cf7fc4d95debc4687d6549e89ed90d6ca6654157dfe73325
ripemd-160 50de47e4457111a4be58f7c47a2666f6f2bee336

18831421 as geometric shapes

Circle

Radius = n
Diameter 37662842
Circumference 118321307.74051
Area 1.1140791796661E+15

Sphere

Radius = n
Volume 2.7972925412835E+22
Surface area 4.4563167186643E+15
Circumference 118321307.74051

Square

Length = n
Perimeter 75325684
Area 354622416879241
Diagonal 26631650.976958

Cube

Length = n
Surface area 2127734501275446
Volume 6.6780440282905E+21
Space diagonal 32616977.95072

Equilateral Triangle

Length = n
Perimeter 56494263
Area 1.5355601088443E+14
Altitude 16308488.97536

Triangular Pyramid

Length = n
Surface area 1.5355601088443E+14
Volume 7.8701503624442E+20
Height 8877216.9923192