256990809 (number)

256990809 is an odd 9-digits composite number following 256990808 and preceding 256990810. In scientific notation, it is written as 2.56990809 × 10^8. The sum of its digits is 48. It has a total of 2 prime factors and 4 positive divisors. There are 171327204 positive integers (up to 256990809) that are relatively prime to 256990809.

Interesting facts

Basic properties

Name

Name two hundred fifty-six million nine hundred ninety thousand eight hundred nine

Notation

Scientific notation 2.56990809 × 10^8
Engineering notation 2.56990809 × 10^6

Prime Factorization of 256990809

Prime Factorization 3 × 85663603

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 256990809
Product of the distinct prime numbers

The prime factorization of 256990809 is 3 × 85663603. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 10, 49, 8, 517, 943, 3845, 7486, 15370, 90462, 214203, 894201, 1579291, 180240, 516954, 74754371, 21602609, 269627102, 4947250068, 6636693042

Basic calculations (n = 256990809)

Multiplication

n×y
n×2 513981618
n×3 770972427
n×4 1027963236
n×5 1284954045

Division

n÷y
n÷2 128495404.5
n÷3 85663603
n÷3 64247702.25
n÷5 51398161.8

Exponentiation

ny
n2 66044275910474481
n3 1.6972771896052E+25
n4 4.3618463805389E+33
n5 1.1209544300684E+42

Nth Root

y√n
2√n 16030.932879904
3√n 635.7785387518
4√n 126.61332030993
5√n 48.082110070173

Divisors of 256990809

1, 3, 85663603, 256990809

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 -256990808
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 256990809 can be divided by 4 positive divisors. The sum of these divisors (counting 256990809) is 1, the average is 0.25.

Base conversion 256990809

Base System Value
2 Binary 1111010100010101111001011001
3 Ternary 122220120111010010
4 Quaternary 33110111321121
5 Quinary 1011242201214
6 Senary 41300112133
8 Octal 1724257131
10 Decimal 256990809
12 Duodecimal 72095649
16 Hexadecimal f515e59
20 Vigesimal 4063h09
36 Base36 4907dl

Cryptographic Hash Functions

md5 6ae9b1b210344a695b79d664814eb917
sha1 85b5e5a09f2784a508433ac60913bfdb70904238
sha256 4b78f527673d68ba0ac8ae6d8acde43e419962318eb960cc4110f729a898de57
sha512 761c6ae2ebacaa9005eebb129c720a02d9d0beb1ee3b7f160d0801ac1f0931562315d55aaa854025272d6daf1bf6f771a8d43d43b66cdf3108b586931821ee59
ripemd-160 f9f6f5b15644f775acda6a81355cb643836962ab

256990809 as geometric shapes

Circle

Radius = n
Diameter 513981618
Circumference 1614720875.189
Area 2.07484212012E+17

Sphere

Radius = n
Volume 7.1095380666257E+25
Surface area 8.2993684804802E+17
Circumference 1614720875.189

Square

Length = n
Perimeter 1027963236
Area 66044275910474481
Diagonal 363439887.49303

Cube

Length = n
Surface area 396265655462846886
Volume 1.6972771896052E+25
Space diagonal 445121138.26623

Equilateral Triangle

Length = n
Perimeter 770972427
Area 2.859801035651E+16
Altitude 222560569.13311

Triangular Pyramid

Length = n
Surface area 2.859801035651E+16
Volume 2.0002603505385E+24
Height 121146629.16434