18391390 (number)

18391390 is an even 8-digits composite number following 18391389 and preceding 18391391. In scientific notation, it is written as 1.8391390 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 7317280 positive integers (up to 18391390) that are relatively prime to 18391390.

Interesting facts

Basic properties

Name

Name eighteen million three hundred ninety-one thousand three hundred ninety

Notation

Scientific notation 1.8391390 × 10^7
Engineering notation 1.8391390 × 10^6

Prime Factorization of 18391390

Prime Factorization 2 × 5 × 191 × 9629

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18391390
Product of the distinct prime numbers

The prime factorization of 18391390 is 2 × 5 × 191 × 9629. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 9, 26, 3, 743, 107, 8705, 3034, 29718, 84291, 282765, 571946, 6217740, 7483012, 73275146, 6626861, 293020827, 524777086, 3634317053, 2041753139

Basic calculations (n = 18391390)

Multiplication

n×y
n×2 36782780
n×3 55174170
n×4 73565560
n×5 91956950

Division

n÷y
n÷2 9195695
n÷3 6130463.3333333
n÷3 4597847.5
n÷5 3678278

Exponentiation

ny
n2 338243226132100
n3 6.2207630866536E+21
n4 1.1440848002425E+29
n5 2.1041309754332E+36

Nth Root

y√n
2√n 4288.5183921723
3√n 263.96003948273
4√n 65.486780285584
5√n 28.374153298508

Divisors of 18391390

1, 2, 5, 10, 191, 382, 955, 1910, 9629, 19258, 48145, 96290, 1839139, 3678278, 9195695, 18391390

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 -18391389
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 18391390 can be divided by 16 positive divisors. The sum of these divisors (counting 18391390) is 1, the average is 0.0625.

Base conversion 18391390

Base System Value
2 Binary 1000110001010000101011110
3 Ternary 1021121101020121
4 Quaternary 1012022011132
5 Quinary 14202011030
6 Senary 1454105154
8 Octal 106120536
10 Decimal 18391390
12 Duodecimal 61ab1ba
16 Hexadecimal 118a15e
20 Vigesimal 5eii9a
36 Base36 ay6vy

Cryptographic Hash Functions

md5 615569b042bba7f9d222ffd418655730
sha1 441c78ba7b3b8e2671eebd2a2379de1baf1820a5
sha256 9229584ccc33bbf11ab48c749afe324ca0fefca1713964e813bf9cfdd719b320
sha512 47ac0ea2cd48f266674f73230c2d0443019f4a10d20805320d41db3cb56210f630094d9dfd66883927470e9e1130b6d6cac6fe5f300b3ab36e2e5cfd1998f9ca
ripemd-160 2a2be4bdb43a4d1e9fb1dcbf6a942a35ead1d3a2

18391390 as geometric shapes

Circle

Radius = n
Diameter 36782780
Circumference 115556511.42661
Area 1.0626224343431E+15

Sphere

Radius = n
Volume 2.6057471483672E+22
Surface area 4.2504897373725E+15
Circumference 115556511.42661

Square

Length = n
Perimeter 73565560
Area 338243226132100
Diagonal 26009353.168893

Cube

Length = n
Surface area 2029459356792600
Volume 6.2207630866536E+21
Space diagonal 31854821.901814

Equilateral Triangle

Length = n
Perimeter 55174170
Area 1.464636132442E+14
Altitude 15927410.950907

Triangular Pyramid

Length = n
Surface area 1.464636132442E+14
Volume 7.3312396045462E+20
Height 8669784.389631