256142721 (number)

256142721 is an odd 9-digits composite number following 256142720 and preceding 256142722. In scientific notation, it is written as 2.56142721 × 10^8. The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors. There are 167962320 positive integers (up to 256142721) that are relatively prime to 256142721.

Interesting facts

Basic properties

Name

Name two hundred fifty-six million one hundred forty-two thousand seven hundred twenty-one

Notation

Scientific notation 2.56142721 × 10^8
Engineering notation 2.56142721 × 10^6

Prime Factorization of 256142721

Prime Factorization 3 × 61 × 1399687

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 256142721
Product of the distinct prime numbers

The prime factorization of 256142721 is 3 × 61 × 1399687. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 1, 22, 61, 585, 185, 7606, 3678, 677, 97493, 644231, 245985, 4998023, 8719619, 86354578, 83340850, 953257964, 895277902, 3339180455, 263796438

Basic calculations (n = 256142721)

Multiplication

n×y
n×2 512285442
n×3 768428163
n×4 1024570884
n×5 1280713605

Division

n÷y
n÷2 128071360.5
n÷3 85380907
n÷3 64035680.25
n÷5 51228544.2

Exponentiation

ny
n2 65609093521283841
n3 1.6805291736885E+25
n4 4.3045531526846E+33
n5 1.1025799572178E+42

Nth Root

y√n
2√n 16004.459409802
3√n 635.07839650432
4√n 126.50873254365
5√n 48.050333217536

Divisors of 256142721

1, 3, 61, 183, 1399687, 4199061, 85380907, 256142721

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -256142720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 256142721 can be divided by 8 positive divisors. The sum of these divisors (counting 256142721) is 1, the average is 0.125.

Base conversion 256142721

Base System Value
2 Binary 1111010001000110110110000001
3 Ternary 122211222101202110
4 Quaternary 33101012312001
5 Quinary 1011033031341
6 Senary 41230005533
8 Octal 1721066601
10 Decimal 256142721
12 Duodecimal 719468a9
16 Hexadecimal f446d81
20 Vigesimal 400hgg1
36 Base36 48i0zl

Cryptographic Hash Functions

md5 53c007c8605e9c41ee2557df0b50e2c4
sha1 f3a7e93a7a27ea51287971938066035b8c289dd2
sha256 2fc7485d4c7114c0ecbb606769bb0ad4609f1d38ba68fe7e9ff7a715cfc7cfb5
sha512 3c06c56f5338f5861e0f71b71a54ea6a255225060cde14e369a6901e5972394119d0392f4b89b965061ab52635481be3dcd786733c8e724083859cd358c49a06
ripemd-160 97380e053c64e1eacabedb80177bba941ff04293

256142721 as geometric shapes

Circle

Radius = n
Diameter 512285442
Circumference 1609392181.1282
Area 2.0611704621515E+17

Sphere

Radius = n
Volume 7.0393841416042E+25
Surface area 8.244681848606E+17
Circumference 1609392181.1282

Square

Length = n
Perimeter 1024570884
Area 65609093521283841
Diagonal 362240509.94135

Cube

Length = n
Surface area 393654561127703046
Volume 1.6805291736885E+25
Space diagonal 443652206.76094

Equilateral Triangle

Length = n
Perimeter 768428163
Area 2.840957085435E+16
Altitude 221826103.38047

Triangular Pyramid

Length = n
Surface area 2.840957085435E+16
Volume 1.980522624495E+24
Height 120746836.64712