128087890 (number)

128087890 is an even 9-digits composite number following 128087889 and preceding 128087891. In scientific notation, it is written as 1.28087890 × 10^8. The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors. There are 43915824 positive integers (up to 128087890) that are relatively prime to 128087890.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million eighty-seven thousand eight hundred ninety

Notation

Scientific notation 1.28087890 × 10^8
Engineering notation 1.28087890 × 10^6

Prime Factorization of 128087890

Prime Factorization 2 × 5 × 7 × 1829827

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 128087890
Product of the distinct prime numbers

The prime factorization of 128087890 is 2 × 5 × 7 × 1829827. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 8, 77, 61, 419, 429, 1430, 3719, 46281, 35808, 738679, 251205, 470265, 4085606, 29704334, 85990301, 137498836, 613715113, 4025526905, 2269741797

Basic calculations (n = 128087890)

Multiplication

n×y
n×2 256175780
n×3 384263670
n×4 512351560
n×5 640439450

Division

n÷y
n÷2 64043945
n÷3 42695963.333333
n÷3 32021972.5
n÷5 25617578

Exponentiation

ny
n2 16406507564652100
n3 2.1014749362253E+24
n4 2.6917349046899E+32
n5 3.4477864438108E+40

Nth Root

y√n
2√n 11317.592058384
3√n 504.083741964
4√n 106.38417202941
5√n 41.831324355489

Divisors of 128087890

1, 2, 5, 7, 10, 14, 35, 70, 1829827, 3659654, 9149135, 12808789, 18298270, 25617578, 64043945, 128087890

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 -128087889
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 128087890 can be divided by 16 positive divisors. The sum of these divisors (counting 128087890) is 1, the average is 0.0625.

Base conversion 128087890

Base System Value
2 Binary 111101000100111011101010010
3 Ternary 22221000112112221
4 Quaternary 13220213131102
5 Quinary 230242303030
6 Senary 20413211254
8 Octal 750473522
10 Decimal 128087890
12 Duodecimal 36a90b2a
16 Hexadecimal 7a27752
20 Vigesimal 200ajea
36 Base36 249d8y

Cryptographic Hash Functions

md5 38b90934c2a82277324838fb0187da01
sha1 3e087305932af6bf29a89f262b1f8b7aa2499e89
sha256 b84378416d02e3d522c5f00aac66024324f92384aa98ee7bc0614a0870d19f11
sha512 85ff5fe1e213c3a81ccc2822f1bfb604480b1480531b2e7adba62ac749dd658977d1afe7eaf5844abb1866a240b2f20af6a84718785e3be749953daa6d625bd3
ripemd-160 c2ed0ae913f2b2f00035c484ad205eae61d589bd

128087890 as geometric shapes

Circle

Radius = n
Diameter 256175780
Circumference 804799948.47564
Area 5.1542563636176E+16

Sphere

Radius = n
Volume 8.8026376284648E+24
Surface area 2.0617025454471E+17
Circumference 804799948.47564

Square

Length = n
Perimeter 512351560
Area 16406507564652100
Diagonal 181143631.21375

Cube

Length = n
Surface area 98439045387912600
Volume 2.1014749362253E+24
Space diagonal 221854733.31429

Equilateral Triangle

Length = n
Perimeter 384263670
Area 7.1042261691851E+15
Altitude 110927366.65715

Triangular Pyramid

Length = n
Surface area 7.1042261691851E+15
Volume 2.4766119631642E+23
Height 60381210.404584