128294987 (number)

128294987 is an odd 9-digits prime number following 128294986 and preceding 128294988. In scientific notation, it is written as 1.28294987 × 10^8. The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors. There are 128294986 positive integers (up to 128294987) that are relatively prime to 128294987.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28294987 × 10^8
Engineering notation 1.28294987 × 10^6

Prime Factorization of 128294987

Prime Factorization 128294987

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 128294987
Product of the distinct prime numbers

The prime factorization of 128294987 is 128294987. Since it has a total of 1 prime factors.

Most popular turbo-numbers

7, 6, 65, 26, 134, 824, 5624, 1374, 11222, 43199, 187194, 240061, 3596025, 9460452, 86770313, 22158317, 599035348, 822230426, 7692667259, 8713876594

Basic calculations (n = 128294987)

Multiplication

n×y
n×2 256589974
n×3 384884961
n×4 513179948
n×5 641474935

Division

n÷y
n÷2 64147493.5
n÷3 42764995.666667
n÷3 32073746.75
n÷5 25658997.4

Exponentiation

ny
n2 16459603689330169
n3 2.1116846413478E+24
n4 2.7091855360981E+32
n5 3.475749231343E+40

Nth Root

y√n
2√n 11326.737703328
3√n 504.35526911212
4√n 106.42714739825
5√n 41.844842486611

Divisors of 128294987

1, 128294987

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 128294988
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 64147494
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 11326.737747472
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999844109
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128294987 can be divided by 2 positive divisors. The sum of these divisors (counting 128294987) is 128294988, the average is 64147494.

Base conversion 128294987

Base System Value
2 Binary 111101001011010000001001011
3 Ternary 22221102001122012
4 Quaternary 13221122001023
5 Quinary 230320414422
6 Senary 20421450135
8 Octal 751320113
10 Decimal 128294987
12 Duodecimal 36b7094b
16 Hexadecimal 7a5a04b
20 Vigesimal 201gh97
36 Base36 24dt1n

Cryptographic Hash Functions

md5 1580b99e2e2e648ce3ebfb7f9fddedf6
sha1 b02b156272f45d71361eef117b49f18574e2db9a
sha256 33a00b97fb07c55b3e84f3c90d5295848fa68aa0d593cad80575fb35c2541896
sha512 bc33a266b1646572885756f3f7e4ebc65da6105338c6a87d1b1de8a621b2d5648938e3d1379c4c3e84df8da52d8dd440ae711c0bdbcd1f671b41b05ede22cb8b
ripemd-160 404ae8ea2147d319345158d0e6592c64b7355bca

128294987 as geometric shapes

Circle

Radius = n
Diameter 256589974
Circumference 806101177.3032
Area 5.1709370031399E+16

Sphere

Radius = n
Volume 8.8454039412754E+24
Surface area 2.068374801256E+17
Circumference 806101177.3032

Square

Length = n
Perimeter 513179948
Area 16459603689330169
Diagonal 181436510.59988

Cube

Length = n
Surface area 98757622135981014
Volume 2.1116846413478E+24
Space diagonal 222213435.84039

Equilateral Triangle

Length = n
Perimeter 384884961
Area 7.127217465592E+15
Altitude 111106717.92019

Triangular Pyramid

Length = n
Surface area 7.127217465592E+15
Volume 2.4886442160408E+23
Height 60478836.866627