12987688 (number)

12987688 is an even 8-digits composite number following 12987687 and preceding 12987689. In scientific notation, it is written as 1.2987688 × 10^7. The sum of its digits is 49. It has a total of 5 prime factors and 16 positive divisors. There are 5566128 positive integers (up to 12987688) that are relatively prime to 12987688.

Interesting facts

Basic properties

Name

Name twelve million nine hundred eighty-seven thousand six hundred eighty-eight

Notation

Scientific notation 1.2987688 × 10^7
Engineering notation 1.2987688 × 10^6

Prime Factorization of 12987688

Prime Factorization 2 × 2 × 2 × 7 × 231923

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 3246922
Product of the distinct prime numbers

The prime factorization of 12987688 is 2 × 2 × 2 × 7 × 231923. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 4, 95, 41, 587, 767, 3005, 1012, 34113, 23501, 899917, 313892, 6332409, 1842192, 90356064, 44770934, 854963206, 660341822, 4580352664, 1779508998

Basic calculations (n = 12987688)

Multiplication

n×y
n×2 25975376
n×3 38963064
n×4 51950752
n×5 64938440

Division

n÷y
n÷2 6493844
n÷3 4329229.3333333
n÷3 3246922
n÷5 2597537.6

Exponentiation

ny
n2 168680039585344
n3 2.1907637259621E+21
n4 2.8452955754513E+28
n5 3.6953811201742E+35

Nth Root

y√n
2√n 3603.8435038164
3√n 235.05921549858
4√n 60.032020654118
5√n 26.467100680244

Divisors of 12987688

1, 2, 4, 7, 8, 14, 28, 56, 231923, 463846, 927692, 1623461, 1855384, 3246922, 6493844, 12987688

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -12987687
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 12987688 can be divided by 16 positive divisors. The sum of these divisors (counting 12987688) is 1, the average is 0.0625.

Base conversion 12987688

Base System Value
2 Binary 110001100010110100101000
3 Ternary 220102211202111
4 Quaternary 301202310220
5 Quinary 11311101223
6 Senary 1142212104
8 Octal 61426450
10 Decimal 12987688
12 Duodecimal 4424034
16 Hexadecimal c62d28
20 Vigesimal 413948
36 Base36 7qdd4

Cryptographic Hash Functions

md5 6f08e75661f225648f54bf44c6c0131f
sha1 892931b41cb9d2c9931bc19234c7ddf46030dbd9
sha256 4f417f60b34eab3d74c0ffac33f2a58d73f3e08605fa23e946e3534491bedbd2
sha512 38c89f711a9e5b1d11021c9e0c0cbc63104fe0747ab29ffe83da5b5b6cf81322a36d0027510c16a6bb836d272da7d56160c8e39591973cf8ecdbaecc4a6f5307
ripemd-160 b8c59b1c2bdd8e83a2bc9b887bd74eac5374bb92

12987688 as geometric shapes

Circle

Radius = n
Diameter 25975376
Circumference 81604050.415833
Area 5.2992397316855E+14

Sphere

Radius = n
Volume 9.1766496363114E+21
Surface area 2.1196958926742E+15
Circumference 81604050.415833

Square

Length = n
Perimeter 51950752
Area 168680039585344
Diagonal 18367364.51347

Cube

Length = n
Surface area 1012080237512064
Volume 2.1907637259621E+21
Space diagonal 22495335.488853

Equilateral Triangle

Length = n
Perimeter 38963064
Area 73040599696136
Altitude 11247667.744426

Triangular Pyramid

Length = n
Surface area 73040599696136
Volume 2.5818398110088E+20
Height 6122454.8378234