1388891381 (number)

1388891381 is an odd 10-digits composite number following 1388891380 and preceding 1388891382. In scientific notation, it is written as 1.388891381 × 10^9. The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors. There are 1307191872 positive integers (up to 1388891381) that are relatively prime to 1388891381.

Interesting facts

Basic properties

Name

Name one billion three hundred eighty-eight million eight hundred ninety-one thousand three hundred eighty-one

Notation

Scientific notation 1.388891381 × 10^9
Engineering notation 1.388891381 × 10^9

Prime Factorization of 1388891381

Prime Factorization 17 × 81699493

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1388891381
Product of the distinct prime numbers

The prime factorization of 1388891381 is 17 × 81699493. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 7, 93, 94, 161, 237, 3328, 323, 90419, 37719, 496630, 652295, 4629788, 3954585, 33253167, 4441732, 788369450, 372104917, 8011000397, 8234928656

Basic calculations (n = 1388891381)

Multiplication

n×y
n×2 2777782762
n×3 4166674143
n×4 5555565524
n×5 6944456905

Division

n÷y
n÷2 694445690.5
n÷3 462963793.66667
n÷3 347222845.25
n÷5 277778276.2

Exponentiation

ny
n2 1929019268216087161
n3 2.6791982354083E+27
n4 3.7211153371489E+36
n5 5.1682250194731E+45

Nth Root

y√n
2√n 37267.833060161
3√n 1115.7222507904
4√n 193.04878414577
5√n 67.380411131709

Divisors of 1388891381

1, 17, 81699493, 1388891381

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -1388891380
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 1388891381 can be divided by 4 positive divisors. The sum of these divisors (counting 1388891381) is 1, the average is 0.25.

Base conversion 1388891381

Base System Value
2 Binary 1010010110010001100110011110101
3 Ternary 10120210102222210112
4 Quaternary 1102302030303311
5 Quinary 10321024011011
6 Senary 345452432405
8 Octal 12262146365
10 Decimal 1388891381
12 Duodecimal 329178705
16 Hexadecimal 52c8ccf5
20 Vigesimal 11e0b891
36 Base36 mywrg5

Cryptographic Hash Functions

md5 f4a2a184bef38e130adeadd6b7a09104
sha1 30e603f5b9d3a6e7f7589d0bf25bbf47b6cb6572
sha256 b82edeba125c7b93ed0a55cd05135ba099756dfc74f571e3f9b39e33f9c97d2b
sha512 746e3016cd09bdf80fb9261df6a3ce2cd0689cfc63e0afc4687b522632ccdb2f4dc4d906db40198f2caae1baf89eb6c8ef550de20d27f1f24d897edc9e2d7030
ripemd-160 f6d742f4637122008eb9ed0aea3aca831b592d1e

1388891381 as geometric shapes

Circle

Radius = n
Diameter 2777782762
Circumference 8726661918.3676
Area 6.0601927616608E+18

Sphere

Radius = n
Volume 1.1222599325159E+28
Surface area 2.4240771046643E+19
Circumference 8726661918.3676

Square

Length = n
Perimeter 5555565524
Area 1929019268216087161
Diagonal 1964189027.6733

Cube

Length = n
Surface area 1.1574115609297E+19
Volume 2.6791982354083E+27
Space diagonal 2405630438.0865

Equilateral Triangle

Length = n
Perimeter 4166674143
Area 8.352898453324E+17
Altitude 1202815219.0433

Triangular Pyramid

Length = n
Surface area 8.352898453324E+17
Volume 3.157465400667E+26
Height 654729675.8911