18181490 (number)

18181490 is an even 8-digits composite number following 18181489 and preceding 18181491. In scientific notation, it is written as 1.8181490 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors. There are 7216560 positive integers (up to 18181490) that are relatively prime to 18181490.

Interesting facts

Basic properties

Name

Name eighteen million one hundred eighty-one thousand four hundred ninety

Notation

Scientific notation 1.8181490 × 10^7
Engineering notation 1.8181490 × 10^6

Prime Factorization of 18181490

Prime Factorization 2 × 5 × 131 × 13879

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18181490
Product of the distinct prime numbers

The prime factorization of 18181490 is 2 × 5 × 131 × 13879. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 3, 40, 84, 49, 726, 3846, 5551, 70588, 37945, 751664, 862749, 7016994, 8747076, 20093864, 71257917, 690998184, 832856215, 1595870740, 111287604

Basic calculations (n = 18181490)

Multiplication

n×y
n×2 36362980
n×3 54544470
n×4 72725960
n×5 90907450

Division

n÷y
n÷2 9090745
n÷3 6060496.6666667
n÷3 4545372.5
n÷5 3636298

Exponentiation

ny
n2 330566578620100
n3 6.0101929435156E+21
n4 1.092742629006E+29
n5 1.9867689181846E+36

Nth Root

y√n
2√n 4263.9758442093
3√n 262.95200731931
4√n 65.299125906931
5√n 28.309089032444

Divisors of 18181490

1, 2, 5, 10, 131, 262, 655, 1310, 13879, 27758, 69395, 138790, 1818149, 3636298, 9090745, 18181490

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 -18181489
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 18181490 can be divided by 16 positive divisors. The sum of these divisors (counting 18181490) is 1, the average is 0.0625.

Base conversion 18181490

Base System Value
2 Binary 1000101010110110101110010
3 Ternary 1021012201022112
4 Quaternary 1011112311302
5 Quinary 14123301430
6 Senary 1445405322
8 Octal 105266562
10 Decimal 18181490
12 Duodecimal 6109842
16 Hexadecimal 1156d72
20 Vigesimal 5dcdea
36 Base36 atoxe

Cryptographic Hash Functions

md5 b74a20a4f9c5cd11e3c14ee27896c65e
sha1 d8d985ab68ca3dc1d1d99bc117a5cc69f0c89ac9
sha256 73249c27f9a8ec8a91fde0f173ab04cf950cb4f7dae1f0ad1511f261bea97956
sha512 00acaf629baea0675ae3bb4b1eb28979da0dc9f33afd5975c76482d25f5db25c463c570292b40c419ee6ea8a3b1330c7198058edff02c8109aab007f56f51d06
ripemd-160 297f4ef5dce3080984d31dbd4496a2eedfc8810e

18181490 as geometric shapes

Circle

Radius = n
Diameter 36362980
Circumference 114237670.83063
Area 1.0385055349152E+15

Sphere

Radius = n
Volume 2.5175437330674E+22
Surface area 4.1540221396609E+15
Circumference 114237670.83063

Square

Length = n
Perimeter 72725960
Area 330566578620100
Diagonal 25712509.742151

Cube

Length = n
Surface area 1983399471720600
Volume 6.0101929435156E+21
Space diagonal 31491264.437305

Equilateral Triangle

Length = n
Perimeter 54544470
Area 1.4313952736356E+14
Altitude 15745632.218653

Triangular Pyramid

Length = n
Surface area 1.4313952736356E+14
Volume 7.083080310999E+20
Height 8570836.5807169