18997907 (number)

18997907 is an odd 8-digits composite number following 18997906 and preceding 18997908. In scientific notation, it is written as 1.8997907 × 10^7. The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors. There are 18985440 positive integers (up to 18997907) that are relatively prime to 18997907.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred ninety-seven thousand nine hundred seven

Notation

Scientific notation 1.8997907 × 10^7
Engineering notation 1.8997907 × 10^6

Prime Factorization of 18997907

Prime Factorization 1777 × 10691

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 18997907
Product of the distinct prime numbers

The prime factorization of 18997907 is 1777 × 10691. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 18997907)

Multiplication

n×y
n×2 37995814
n×3 56993721
n×4 75991628
n×5 94989535

Division

n÷y
n÷2 9498953.5
n÷3 6332635.6666667
n÷3 4749476.75
n÷5 3799581.4

Exponentiation

ny
n2 360920470380649
n3 6.8567335306878E+21
n4 1.3026358593979E+29
n5 2.4747354911706E+36

Nth Root

y√n
2√n 4358.658853363
3√n 266.83036632879
4√n 66.020139755707
5√n 28.558878675367

Divisors of 18997907

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 -18997906
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 18997907 can be divided by 4 positive divisors. The sum of these divisors (counting 18997907) is 1, the average is 0.25.

Base conversion 18997907

Base System Value
2 Binary 1001000011110001010010011
3 Ternary 1022202012020012
4 Quaternary 1020132022103
5 Quinary 14330413112
6 Senary 1515105135
8 Octal 110361223
10 Decimal 18997907
12 Duodecimal 64421ab
16 Hexadecimal 121e293
20 Vigesimal 5ieef7
36 Base36 bb6vn

Cryptographic Hash Functions

md5 79a365ff026eecd7854e7239c8aa796a
sha1 1aff997fc987629c219f122d1be33ce9989de157
sha256 db892fbb971d1561f9e04c6fd87885968d0c5af39dbe2b92f46a8996d0bbc6f7
sha512 c7f4ac1acb921c1c640c63b425981fdfe9a3523a3def77fb861e325629f3f607d8b01b108f045f54c59ef85e6a113f1ea33dcda82b3d74b371fed8041c2fa885
ripemd-160 b41121e2a5e6833feea0b23229d71a3c79a8f188

18997907 as geometric shapes

Circle

Radius = n
Diameter 37995814
Circumference 119367370.12956
Area 1.133865098278E+15

Sphere

Radius = n
Volume 2.8721418250176E+22
Surface area 4.5354603931121E+15
Circumference 119367370.12956

Square

Length = n
Perimeter 75991628
Area 360920470380649
Diagonal 26867097.736103

Cube

Length = n
Surface area 2165522822283894
Volume 6.8567335306878E+21
Space diagonal 32905340.161468

Equilateral Triangle

Length = n
Perimeter 56993721
Area 1.5628314804774E+14
Altitude 16452670.080734

Triangular Pyramid

Length = n
Surface area 1.5628314804774E+14
Volume 8.0807379605642E+20
Height 8955699.2453676