1388747981 (number)

1388747981 is an odd 10-digits composite number following 1388747980 and preceding 1388747982. In scientific notation, it is written as 1.388747981 × 10^9. The sum of its digits is 56. It has a total of 3 prime factors and 8 positive divisors. There are 1258453152 positive integers (up to 1388747981) that are relatively prime to 1388747981.

Interesting facts

Basic properties

Name

Name one billion three hundred eighty-eight million seven hundred forty-seven thousand nine hundred eighty-one

Notation

Scientific notation 1.388747981 × 10^9
Engineering notation 1.388747981 × 10^9

Prime Factorization of 1388747981

Prime Factorization 19 × 23 × 3177913

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 1388747981
Product of the distinct prime numbers

The prime factorization of 1388747981 is 19 × 23 × 3177913. Since it has a total of 3 prime factors.

Most popular turbo-numbers

4, 1, 32, 2, 241, 117, 6907, 6544, 95597, 24752, 541968, 885533, 9675755, 9569688, 65937997, 72228019, 164642087, 817059634, 2454869371, 7763433341

Basic calculations (n = 1388747981)

Multiplication

n×y
n×2 2777495962
n×3 4166243943
n×4 5554991924
n×5 6943739905

Division

n÷y
n÷2 694373990.5
n÷3 462915993.66667
n÷3 347186995.25
n÷5 277749596.2

Exponentiation

ny
n2 1928620954731576361
n3 2.6783684569978E+27
n4 3.7195787870297E+36
n5 5.165557530658E+45

Nth Root

y√n
2√n 37265.909099336
3√n 1115.6838508407
4√n 193.04380098655
5√n 67.379019698202

Divisors of 1388747981

1, 19, 23, 437, 3177913, 60380347, 73091999, 1388747981

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 -1388747980
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 1388747981 can be divided by 8 positive divisors. The sum of these divisors (counting 1388747981) is 1, the average is 0.125.

Base conversion 1388747981

Base System Value
2 Binary 1010010110001101001110011001101
3 Ternary 10120210011201002102
4 Quaternary 1102301221303031
5 Quinary 10321004413411
6 Senary 345445404445
8 Octal 12261516315
10 Decimal 1388747981
12 Duodecimal 329109725
16 Hexadecimal 52c69ccd
20 Vigesimal 11djd9j1
36 Base36 mytost

Cryptographic Hash Functions

md5 250beca55345d26dd4a1837e824eecd4
sha1 3c0dd5a4aa866eaba10f6098771d7408bd41168b
sha256 67f278552861f90e5c814f8fb895a52faa701fcc243c6e6b888701bb9acb5b47
sha512 f1a22a2e3a94d751c99ee074a9d4ac4c11347a17853a2aeba76d5b27bd2a508ae5b1d0bbe60c50a6cb39e7800bb8c6bebe16a3d56cf119616a85f143653656a1
ripemd-160 7400c9758d58d3dd54882ab03645bfaf51342dcb

1388747981 as geometric shapes

Circle

Radius = n
Diameter 2777495962
Circumference 8725760909.5945
Area 6.0589414229441E+18

Sphere

Radius = n
Volume 1.1219123557481E+28
Surface area 2.4235765691776E+19
Circumference 8725760909.5945

Square

Length = n
Perimeter 5554991924
Area 1928620954731576361
Diagonal 1963986229.4485

Cube

Length = n
Surface area 1.1571725728389E+19
Volume 2.6783684569978E+27
Space diagonal 2405382062.0007

Equilateral Triangle

Length = n
Perimeter 4166243943
Area 8.3511737053427E+17
Altitude 1202691031.0003

Triangular Pyramid

Length = n
Surface area 8.3511737053427E+17
Volume 3.1564874974321E+26
Height 654662076.48282