205121749 (number)

205121749 is an odd 9-digits composite number following 205121748 and preceding 205121750. In scientific notation, it is written as 2.05121749 × 10^8. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 175653456 positive integers (up to 205121749) that are relatively prime to 205121749.

Interesting facts

Basic properties

Name

Name two hundred five million one hundred twenty-one thousand seven hundred forty-nine

Notation

Scientific notation 2.05121749 × 10^8
Engineering notation 2.05121749 × 10^6

Prime Factorization of 205121749

Prime Factorization 7 × 1109 × 26423

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 205121749
Product of the distinct prime numbers

The prime factorization of 205121749 is 7 × 1109 × 26423. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 7, 17, 85, 695, 862, 4329, 5300, 85766, 90899, 69691, 194012, 9379242, 5453572, 64332066, 20155141, 823826210, 569953026, 8689880539, 8684490786

Basic calculations (n = 205121749)

Multiplication

n×y
n×2 410243498
n×3 615365247
n×4 820486996
n×5 1025608745

Division

n÷y
n÷2 102560874.5
n÷3 68373916.333333
n÷3 51280437.25
n÷5 41024349.8

Exponentiation

ny
n2 42074931912819001
n3 8.6304836230133E+24
n4 1.7702998954684E+33
n5 3.6312701081299E+41

Nth Root

y√n
2√n 14322.072091705
3√n 589.75355885966
4√n 119.67485989841
5√n 45.962362344719

Divisors of 205121749

1, 7, 1109, 7763, 26423, 184961, 29303107, 205121749

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 -205121748
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 205121749 can be divided by 8 positive divisors. The sum of these divisors (counting 205121749) is 1, the average is 0.125.

Base conversion 205121749

Base System Value
2 Binary 1100001110011110100011010101
3 Ternary 112021222021010211
4 Quaternary 30032132203111
5 Quinary 410002343444
6 Senary 32204245421
8 Octal 1416364325
10 Decimal 205121749
12 Duodecimal 58840871
16 Hexadecimal c39e8d5
20 Vigesimal 3420479
36 Base36 3e4gyd

Cryptographic Hash Functions

md5 83b67b536c09b5e2fe6e5398803ad830
sha1 2b2d58bb6c68893be7ec96ca355009aacd393f3a
sha256 7a60d10f6db3e8c27e3ed9b6ad2cb6ab6944a41412f5d9532c2c0a4e230f0630
sha512 9f8c5813ca379039b9ec4dbcb1dab7936bb554880a71af92f428997444d0975b0865a5aab3c94a325236c09afbd95985104acda60119e9f7c791be17ed14252b
ripemd-160 ed934a4040592506b8ea8fa60aa6a6d181278152

205121749 as geometric shapes

Circle

Radius = n
Diameter 410243498
Circumference 1288817959.4998
Area 1.321822969976E+17

Sphere

Radius = n
Volume 3.6151285262648E+25
Surface area 5.2872918799041E+17
Circumference 1288817959.4998

Square

Length = n
Perimeter 820486996
Area 42074931912819001
Diagonal 290085959.37349

Cube

Length = n
Surface area 252449591476914006
Volume 8.6304836230133E+24
Space diagonal 355281291.00539

Equilateral Triangle

Length = n
Perimeter 615365247
Area 1.8218979949501E+16
Altitude 177640645.5027

Triangular Pyramid

Length = n
Surface area 1.8218979949501E+16
Volume 1.0171122491254E+24
Height 96695319.791163