12821985 (number)

12821985 is an odd 8-digits composite number following 12821984 and preceding 12821986. In scientific notation, it is written as 1.2821985 × 10^7. The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors. There are 6216480 positive integers (up to 12821985) that are relatively prime to 12821985.

Interesting facts

Basic properties

Name

Name twelve million eight hundred twenty-one thousand nine hundred eighty-five

Notation

Scientific notation 1.2821985 × 10^7
Engineering notation 1.2821985 × 10^6

Prime Factorization of 12821985

Prime Factorization 9 × 55 × 25903

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 12821985
Product of the distinct prime numbers

The prime factorization of 12821985 is 9 × 55 × 25903. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 12821985)

Multiplication

n×y
n×2 25643970
n×3 38465955
n×4 51287940
n×5 64109925

Division

n÷y
n÷2 6410992.5
n÷3 4273995
n÷3 3205496.25
n÷5 2564397

Exponentiation

ny
n2 164403299340225
n3 2.1079766380909E+21
n4 2.7028444833952E+28
n5 3.4655831423426E+35

Nth Root

y√n
2√n 3580.7799429733
3√n 234.05526855804
4√n 59.839618506248
5√n 26.399217425327

Divisors of 12821985

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 -12821984
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 12821985 can be divided by 8 positive divisors. The sum of these divisors (counting 12821985) is 1, the average is 0.125.

Base conversion 12821985

Base System Value
2 Binary 110000111010010111100001
3 Ternary 220010102110100
4 Quaternary 300322113201
5 Quinary 11240300420
6 Senary 1134453013
8 Octal 60722741
10 Decimal 12821985
12 Duodecimal 4364169
16 Hexadecimal c3a5e1
20 Vigesimal 402ej5
36 Base36 7mti9

Cryptographic Hash Functions

md5 a786ce85773a65ee08c8cf568d454af8
sha1 ea8d52e9bdf5e1136c403f4242c548828b924094
sha256 fea11b37b02aca0a700aef6dda27cbfd75ad092ef29ec7a09c933cc9f75036ca
sha512 4b20620b253c3eb52b274acb2d32ffff97f38590043527876d3d73a763f4de591fe0aa002a8eec1bedd7059e49a9e5cea5e6102ea3c099f4c0c0ced5c128ba60
ripemd-160 7c57fd6f9551e782ca0799879ca2388ae6dcd0f3

12821985 as geometric shapes

Circle

Radius = n
Diameter 25643970
Circumference 80562907.760877
Area 5.1648819743317E+14

Sphere

Radius = n
Volume 8.8298718935536E+21
Surface area 2.0659527897327E+15
Circumference 80562907.760877

Square

Length = n
Perimeter 51287940
Area 164403299340225
Diagonal 18133025.083544

Cube

Length = n
Surface area 986419796041350
Volume 2.1079766380909E+21
Space diagonal 22208329.473886

Equilateral Triangle

Length = n
Perimeter 38465955
Area 71188716847306
Altitude 11104164.736943

Triangular Pyramid

Length = n
Surface area 71188716847306
Volume 2.4842742922948E+20
Height 6044341.6945148