18438961 (number)

18438961 is an odd 8-digits composite number following 18438960 and preceding 18438962. In scientific notation, it is written as 1.8438961 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 18425332 positive integers (up to 18438961) that are relatively prime to 18438961.

Interesting facts

Basic properties

Name

Name eighteen million four hundred thirty-eight thousand nine hundred sixty-one

Notation

Scientific notation 1.8438961 × 10^7
Engineering notation 1.8438961 × 10^6

Prime Factorization of 18438961

Prime Factorization 1523 × 12107

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18438961
Product of the distinct prime numbers

The prime factorization of 18438961 is 1523 × 12107. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 1, 98, 16, 620, 129, 3370, 4672, 18251, 90571, 849362, 689483, 9141754, 8912793, 36177612, 55971550, 131273012, 869607875, 1568450203, 4150587818

Basic calculations (n = 18438961)

Multiplication

n×y
n×2 36877922
n×3 55316883
n×4 73755844
n×5 92194805

Division

n÷y
n÷2 9219480.5
n÷3 6146320.3333333
n÷3 4609740.25
n÷5 3687792.2

Exponentiation

ny
n2 339995282759521
n3 6.2691597589868E+21
n4 1.1559679229873E+29
n5 2.1314847449213E+36

Nth Root

y√n
2√n 4294.0611313767
3√n 264.1874290764
4√n 65.529086147883
5√n 28.388816599884

Divisors of 18438961

1, 1523, 12107, 18438961

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -18438960
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18438961 can be divided by 4 positive divisors. The sum of these divisors (counting 18438961) is 1, the average is 0.25.

Base conversion 18438961

Base System Value
2 Binary 1000110010101101100110001
3 Ternary 1021200210111111
4 Quaternary 1012111230301
5 Quinary 14210021321
6 Senary 1455113321
8 Octal 106255461
10 Decimal 18438961
12 Duodecimal 6212841
16 Hexadecimal 1195b31
20 Vigesimal 5f4h81
36 Base36 az7ld

Cryptographic Hash Functions

md5 282f0332f7f029face8c68743a0c6a0f
sha1 55f9d777f6d41b406faa73fbc25ef2571a7a210e
sha256 2e56e72d9558428b58570b6f02f5a229adac4ec15504c8009c6b742214b5b426
sha512 d37f5db65a93368cab5c5af63209edec7d0b59ba929e4c26cd98c272a92723c8b3615a4ae5b737e3c1452406ece1052631d4f083035706d3d1e8425d9e5a78fe
ripemd-160 630f255fccbea13cfc0330ca3a24b30354c7f967

18438961 as geometric shapes

Circle

Radius = n
Diameter 36877922
Circumference 115855408.83486
Area 1.0681266825725E+15

Sphere

Radius = n
Volume 2.6260194990685E+22
Surface area 4.27250673029E+15
Circumference 115855408.83486

Square

Length = n
Perimeter 73755844
Area 339995282759521
Diagonal 26076628.722269

Cube

Length = n
Surface area 2039971696557126
Volume 6.2691597589868E+21
Space diagonal 31937217.290781

Equilateral Triangle

Length = n
Perimeter 55316883
Area 1.4722227601831E+14
Altitude 15968608.645391

Triangular Pyramid

Length = n
Surface area 1.4722227601831E+14
Volume 7.388275629869E+20
Height 8692209.5740895