12961280 (number)

12961280 is an even 8-digits composite number following 12961279 and preceding 12961281. In scientific notation, it is written as 1.2961280 × 10^7. The sum of its digits is 29. It has a total of 12 prime factors and 80 positive divisors. There are 5038080 positive integers (up to 12961280) that are relatively prime to 12961280.

Interesting facts

Basic properties

Name

Name twelve million nine hundred sixty-one thousand two hundred eighty

Notation

Scientific notation 1.2961280 × 10^7
Engineering notation 1.2961280 × 10^6

Prime Factorization of 12961280

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 61 × 83

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 12
Total number of prime factors
rad Radical 50630
Product of the distinct prime numbers

The prime factorization of 12961280 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 61 × 83. Since it has a total of 12 prime factors.

Most popular turbo-numbers

10, 3, 20, 21, 271, 166, 9317, 4691, 80430, 74156, 549804, 645505, 9065003, 2563124, 98650072, 42534530, 732700536, 87904852, 6632525217, 2455451423

Basic calculations (n = 12961280)

Multiplication

n×y
n×2 25922560
n×3 38883840
n×4 51845120
n×5 64806400

Division

n÷y
n÷2 6480640
n÷3 4320426.6666667
n÷3 3240320
n÷5 2592256

Exponentiation

ny
n2 167994779238400
n3 2.1774273722471E+21
n4 2.8222245851359E+28
n5 3.657964307083E+35

Nth Root

y√n
2√n 3600.1777733884
3√n 234.89979128744
4√n 60.001481426615
5√n 26.456328749833

Divisors of 12961280

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 83, 122, 128, 160, 166, 244, 256, 305, 320, 332, 415, 488, 512, 610, 640, 664, 830, 976, 1220, 1280, 1328, 1660, 1952, 2440, 2560, 2656, 3320, 3904, 4880, 5063, 5312, 6640, 7808, 9760, 10126, 10624, 13280, 15616, 19520, 20252, 21248, 25315, 26560, 31232, 39040, 40504, 42496, 50630, 53120, 78080, 81008, 101260, 106240, 156160, 162016, 202520, 212480, 324032, 405040, 648064, 810080, 1296128, 1620160, 2592256, 3240320, 6480640, 12961280

80 divisors

τ Total Divisors 80
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12961279
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0125
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 80
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12961280 can be divided by 80 positive divisors. The sum of these divisors (counting 12961280) is 1, the average is 0.0125.

Base conversion 12961280

Base System Value
2 Binary 110001011100011000000000
3 Ternary 220101111112102
4 Quaternary 301130120000
5 Quinary 11304230110
6 Senary 1141445532
8 Octal 61343000
10 Decimal 12961280
12 Duodecimal 44108a8
16 Hexadecimal c5c600
20 Vigesimal 410340
36 Base36 7pszk

Cryptographic Hash Functions

md5 2b785c427cbe8935f2b1e4e1cd1d0fb4
sha1 39cf7218f15f28d3674281044247550faceeea35
sha256 e05bfc26b93a9e041362675b5a9f9472b4b7856b343ff156ae1f9d45eae96743
sha512 d20da48717152dafc677a83bafa00b45113c9f6c778b30236a41d400d767d2778274d65f72e482ce4cc41e8c6acddc89ffe26c8953920717b82a825af45afc72
ripemd-160 0572ac951bcbc997efeae66e0959f932c3b4ce1f

12961280 as geometric shapes

Circle

Radius = n
Diameter 25922560
Circumference 81438124.058241
Area 5.277711642968E+14

Sphere

Radius = n
Volume 9.1207864485024E+21
Surface area 2.1110846571872E+15
Circumference 81438124.058241

Square

Length = n
Perimeter 51845120
Area 167994779238400
Diagonal 18330017.961715

Cube

Length = n
Surface area 1007968675430400
Volume 2.1774273722471E+21
Space diagonal 22449595.491126

Equilateral Triangle

Length = n
Perimeter 38883840
Area 72743873261806
Altitude 11224797.745563

Triangular Pyramid

Length = n
Surface area 72743873261806
Volume 2.5661227674285E+20
Height 6110005.9872384