261361808 (number)

261361808 is an even 9-digits composite number following 261361807 and preceding 261361809. In scientific notation, it is written as 2.61361808 × 10^8. The sum of its digits is 35. It has a total of 6 prime factors and 20 positive divisors. There are 122993664 positive integers (up to 261361808) that are relatively prime to 261361808.

Interesting facts

Basic properties

Name

Name two hundred sixty-one million three hundred sixty-one thousand eight hundred eight

Notation

Scientific notation 2.61361808 × 10^8
Engineering notation 2.61361808 × 10^6

Prime Factorization of 261361808

Prime Factorization 2 × 2 × 2 × 2 × 17 × 960889

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 32670226
Product of the distinct prime numbers

The prime factorization of 261361808 is 2 × 2 × 2 × 2 × 17 × 960889. Since it has a total of 6 prime factors.

Most popular turbo-numbers

3, 1, 16, 64, 967, 555, 6885, 8544, 33426, 31074, 963355, 937925, 3862079, 5774042, 3234000, 13252709, 795956655, 416852149, 5798816385, 3381431356

Basic calculations (n = 261361808)

Multiplication

n×y
n×2 522723616
n×3 784085424
n×4 1045447232
n×5 1306809040

Division

n÷y
n÷2 130680904
n÷3 87120602.666667
n÷3 65340452
n÷5 52272361.6

Exponentiation

ny
n2 68309994681028864
n3 1.7853623714304E+25
n4 4.6662553733222E+33
n5 1.2195809409612E+42

Nth Root

y√n
2√n 16166.688219917
3√n 639.36281635167
4√n 127.14829224145
5√n 48.244568359058

Divisors of 261361808

1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 960889, 1921778, 3843556, 7687112, 15374224, 16335113, 32670226, 65340452, 130680904, 261361808

20 divisors

τ Total Divisors 20
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -261361807
Sum of the proper positive divisors of n
A Arithmetic Mean 0.05
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 20
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 261361808 can be divided by 20 positive divisors. The sum of these divisors (counting 261361808) is 1, the average is 0.05.

Base conversion 261361808

Base System Value
2 Binary 1111100101000001000010010000
3 Ternary 200012210112222222
4 Quaternary 33211001002100
5 Quinary 1013402034213
6 Senary 41533520212
8 Octal 1745010220
10 Decimal 261361808
12 Duodecimal 73643068
16 Hexadecimal f941090
20 Vigesimal 41da4a8
36 Base36 4blw28

Cryptographic Hash Functions

md5 0c1f2518b4baa42021acf201cf631d2c
sha1 7604f0d7c9ad2edaeaf3b04e0f1fa0dddc808b24
sha256 17396081fb1c39f9fb003888f91b236d14ba2f6b307d8ae648e2ddb05c4d12a6
sha512 cdd51daa4228d34065fc157d77d19d6ea2815147938c52e8187444def4f82126de824e834ec2f79305ce0d76d070c2e668d202d4895c2c1f4f5aadcd6e112ad1
ripemd-160 e37bdd3e552d7484a4ceb9900293b92905f0bdf7

261361808 as geometric shapes

Circle

Radius = n
Diameter 522723616
Circumference 1642184671.8835
Area 2.1460217745668E+17

Sphere

Radius = n
Volume 7.4785084134419E+25
Surface area 8.5840870982671E+17
Circumference 1642184671.8835

Square

Length = n
Perimeter 1045447232
Area 68309994681028864
Diagonal 369621413.55995

Cube

Length = n
Surface area 409859968086173184
Volume 1.7853623714304E+25
Space diagonal 452691930.61406

Equilateral Triangle

Length = n
Perimeter 784085424
Area 2.9579095363075E+16
Altitude 226345965.30703

Triangular Pyramid

Length = n
Surface area 2.9579095363075E+16
Volume 2.1040697328562E+24
Height 123207137.85332