12887890 (number)

12887890 is an even 8-digits composite number following 12887889 and preceding 12887891. In scientific notation, it is written as 1.2887890 × 10^7. The sum of its digits is 43. It has a total of 5 prime factors and 32 positive divisors. There are 4713408 positive integers (up to 12887890) that are relatively prime to 12887890.

Interesting facts

Basic properties

Name

Name twelve million eight hundred eighty-seven thousand eight hundred ninety

Notation

Scientific notation 1.2887890 × 10^7
Engineering notation 1.2887890 × 10^6

Prime Factorization of 12887890

Prime Factorization 2 × 19 × 5 × 29 × 2339

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 12887890
Product of the distinct prime numbers

The prime factorization of 12887890 is 2 × 19 × 5 × 29 × 2339. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 4, 54, 94, 655, 696, 8334, 3958, 28776, 68059, 16258, 40674, 1382290, 3215885, 13210171, 30407063, 426786410, 35068711, 7317874331, 651489005

Basic calculations (n = 12887890)

Multiplication

n×y
n×2 25775780
n×3 38663670
n×4 51551560
n×5 64439450

Division

n÷y
n÷2 6443945
n÷3 4295963.3333333
n÷3 3221972.5
n÷5 2577578

Exponentiation

ny
n2 166097708652100
n3 2.1406489983603E+21
n4 2.7588448819478E+28
n5 3.5555689365606E+35

Nth Root

y√n
2√n 3589.97075197
3√n 234.45559811735
4√n 59.916364642475
5√n 26.42630019457

Divisors of 12887890

1, 2, 5, 10, 19, 29, 38, 58, 95, 145, 190, 290, 551, 1102, 2339, 2755, 4678, 5510, 11695, 23390, 44441, 67831, 88882, 135662, 222205, 339155, 444410, 678310, 1288789, 2577578, 6443945, 12887890

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12887889
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12887890 can be divided by 32 positive divisors. The sum of these divisors (counting 12887890) is 1, the average is 0.03125.

Base conversion 12887890

Base System Value
2 Binary 110001001010011101010010
3 Ternary 220020202212021
4 Quaternary 301022131102
5 Quinary 11244403030
6 Senary 1140122054
8 Octal 61123522
10 Decimal 12887890
12 Duodecimal 439632a
16 Hexadecimal c4a752
20 Vigesimal 40ajea
36 Base36 7o8cy

Cryptographic Hash Functions

md5 d7ff508129ab37a27c1accb16e0e7333
sha1 994183f741c5023376c510f760edf6ed8c1e6b9d
sha256 221a593595551c125a324e438bb1a95a92bd2ca11a2fdc125f158b10032ac67a
sha512 98081338b7500fdaacb190258008904442b65c3bddb3d7d53c8cf8874fbfaa38b434ba489eb9282f409337a9aa73208216ef5e6182fd6ccc63f49582f232f6de
ripemd-160 bc596e589ec4dd41827febb86f9ea876094ced48

12887890 as geometric shapes

Circle

Radius = n
Diameter 25775780
Circumference 80977001.088547
Area 5.2181134127954E+14

Sphere

Radius = n
Volume 8.9667295562175E+21
Surface area 2.0872453651181E+15
Circumference 80977001.088547

Square

Length = n
Perimeter 51551560
Area 166097708652100
Diagonal 18226228.828373

Cube

Length = n
Surface area 996586251912600
Volume 2.1406489983603E+21
Space diagonal 22322480.282359

Equilateral Triangle

Length = n
Perimeter 38663670
Area 71922417601552
Altitude 11161240.141179

Triangular Pyramid

Length = n
Surface area 71922417601552
Volume 2.5227790381346E+20
Height 6075409.6094575