128207987 (number)

128207987 is an odd 9-digits prime number following 128207986 and preceding 128207988. In scientific notation, it is written as 1.28207987 × 10^8. The sum of its digits is 44. It has a total of 1 prime factors and 2 positive divisors. There are 128207986 positive integers (up to 128207987) that are relatively prime to 128207987.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million two hundred seven thousand nine hundred eighty-seven

Notation

Scientific notation 1.28207987 × 10^8
Engineering notation 1.28207987 × 10^6

Prime Factorization of 128207987

Prime Factorization 128207987

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 128207987
Product of the distinct prime numbers

The prime factorization of 128207987 is 128207987. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 128207987)

Multiplication

n×y
n×2 256415974
n×3 384623961
n×4 512831948
n×5 641039935

Division

n÷y
n÷2 64103993.5
n÷3 42735995.666667
n÷3 32051996.75
n÷5 25641597.4

Exponentiation

ny
n2 16437287930592169
n3 2.1073915973206E+24
n4 2.7018443451319E+32
n5 3.463980246767E+40

Nth Root

y√n
2√n 11322.896581706
3√n 504.24123807673
4√n 106.40910008879
5√n 41.839165742306

Divisors of 128207987

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 128207988
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 64103994
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 11322.896625864
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999844003
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128207987 can be divided by 2 positive divisors. The sum of these divisors (counting 128207987) is 128207988, the average is 64103994.

Base conversion 128207987

Base System Value
2 Binary 111101001000100110001110011
3 Ternary 22221020122021222
4 Quaternary 13221010301303
5 Quinary 230310123422
6 Senary 20415535255
8 Octal 751046163
10 Decimal 128207987
12 Duodecimal 36b2a52b
16 Hexadecimal 7a44c73
20 Vigesimal 2015jj7
36 Base36 24bxwz

Cryptographic Hash Functions

md5 2e36c80ca16af7c8f219ea2c21d39b75
sha1 27372281c0b1e6ced2d2645a2bf7352ed61f8e9d
sha256 2a5ef0d15891d40bc59de7a365589a1fb542bb6a7c91b24871bc9bcd1375a54b
sha512 d7818b29106e4212fdf8e948a3b7ad6ba85b7d6b9c528a5a034e5901a5d5ab4708301eb38a4eee50c1aa9f0ab116ef2ea19d18b4121978891420dc211f20cbbf
ripemd-160 94865be37753b9a2f37cadbea5ac62bb568e1987

128207987 as geometric shapes

Circle

Radius = n
Diameter 256415974
Circumference 805554540.18147
Area 5.1639263007689E+16

Sphere

Radius = n
Volume 8.8274212805057E+24
Surface area 2.0655705203075E+17
Circumference 805554540.18147

Square

Length = n
Perimeter 512831948
Area 16437287930592169
Diagonal 181313474.01995

Cube

Length = n
Surface area 98623727583553014
Volume 2.1073915973206E+24
Space diagonal 222062747.42013

Equilateral Triangle

Length = n
Perimeter 384623961
Area 7.1175544586061E+15
Altitude 111031373.71007

Triangular Pyramid

Length = n
Surface area 7.1175544586061E+15
Volume 2.4835848151349E+23
Height 60437824.673318