261398980 (number)

261398980 is an even 9-digits composite number following 261398979 and preceding 261398981. In scientific notation, it is written as 2.61398980 × 10^8. The sum of its digits is 46. It has a total of 4 prime factors and 12 positive divisors. There are 104559584 positive integers (up to 261398980) that are relatively prime to 261398980.

Interesting facts

Basic properties

Name

Name two hundred sixty-one million three hundred ninety-eight thousand nine hundred eighty

Notation

Scientific notation 2.61398980 × 10^8
Engineering notation 2.61398980 × 10^6

Prime Factorization of 261398980

Prime Factorization 2 × 2 × 5 × 13069949

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 130699490
Product of the distinct prime numbers

The prime factorization of 261398980 is 2 × 2 × 5 × 13069949. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 7, 57, 69, 982, 740, 7417, 7092, 7410, 80494, 928730, 554865, 9359609, 4204410, 48290509, 36000945, 64854430, 537407638, 9229476686, 1647691377

Basic calculations (n = 261398980)

Multiplication

n×y
n×2 522797960
n×3 784196940
n×4 1045595920
n×5 1306994900

Division

n÷y
n÷2 130699490
n÷3 87132993.333333
n÷3 65349745
n÷5 52279796

Exponentiation

ny
n2 68329426745040400
n3 1.7861242455138E+25
n4 4.6689105593058E+33
n5 1.2204484579138E+42

Nth Root

y√n
2√n 16167.837826995
3√n 639.39312589098
4√n 127.15281289454
5√n 48.24594059098

Divisors of 261398980

1, 2, 4, 5, 10, 20, 13069949, 26139898, 52279796, 65349745, 130699490, 261398980

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -261398979
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 261398980 can be divided by 12 positive divisors. The sum of these divisors (counting 261398980) is 1, the average is 0.083333333333333.

Base conversion 261398980

Base System Value
2 Binary 1111100101001010000111000100
3 Ternary 200012212102222201
4 Quaternary 33211022013010
5 Quinary 1013404231410
6 Senary 41534404244
8 Octal 1745120704
10 Decimal 261398980
12 Duodecimal 73660684
16 Hexadecimal f94a1c4
20 Vigesimal 41deh90
36 Base36 4bmoqs

Cryptographic Hash Functions

md5 28b136627e1fbd34d525a9f91a43da94
sha1 1a44e9fd6d7cadf0c2df7402c9b6ac6feb0bc8c2
sha256 5ec7a4668eafc2e1d10a6dee7dec618ec052c7b369cbcfc372c8d1afdb02542d
sha512 1ee41484eaf1e3e2b6ac3ca86332cf191faa81bb33378c424f3a626a766faf5660daf13a612f393952c3f4c08a60e8dad74989fb5978e09e56a82323df411cb2
ripemd-160 27543f11421a4cca024f41952dcdcec5cf2ca587

261398980 as geometric shapes

Circle

Radius = n
Diameter 522797960
Circumference 1642418230.4477
Area 2.1466322508622E+17

Sphere

Radius = n
Volume 7.4816997441398E+25
Surface area 8.5865290034488E+17
Circumference 1642418230.4477

Square

Length = n
Perimeter 1045595920
Area 68329426745040400
Diagonal 369673982.70649

Cube

Length = n
Surface area 409976560470242400
Volume 1.7861242455138E+25
Space diagonal 452756314.40668

Equilateral Triangle

Length = n
Perimeter 784196940
Area 2.9587509693616E+16
Altitude 226378157.20334

Triangular Pyramid

Length = n
Surface area 2.9587509693616E+16
Volume 2.1049676100742E+24
Height 123224660.90216