1215391381 (number)

1215391381 is an odd 10-digits composite number following 1215391380 and preceding 1215391382. In scientific notation, it is written as 1.215391381 × 10^9. The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors. There are 1198742112 positive integers (up to 1215391381) that are relatively prime to 1215391381.

Interesting facts

Basic properties

Name

Name one billion two hundred fifteen million three hundred ninety-one thousand three hundred eighty-one

Notation

Scientific notation 1.215391381 × 10^9
Engineering notation 1.215391381 × 10^9

Prime Factorization of 1215391381

Prime Factorization 73 × 16649197

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 1215391381
Product of the distinct prime numbers

The prime factorization of 1215391381 is 73 × 16649197. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 2, 81, 81, 224, 633, 3316, 1945, 44680, 10462, 666287, 634702, 2699454, 4189693, 62816451, 90648996, 726790111, 720858808, 7567870523, 5117041935

Basic calculations (n = 1215391381)

Multiplication

n×y
n×2 2430782762
n×3 3646174143
n×4 4861565524
n×5 6076956905

Division

n÷y
n÷2 607695690.5
n÷3 405130460.33333
n÷3 303847845.25
n÷5 243078276.2

Exponentiation

ny
n2 1477176209009087161
n3 1.7953472326479E+27
n4 2.1820495524625E+36
n5 2.6520442189778E+45

Nth Root

y√n
2√n 34862.463782699
3√n 1067.182555216
4√n 186.71492651285
5√n 65.605950273782

Divisors of 1215391381

1, 73, 16649197, 1215391381

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 -1215391380
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 1215391381 can be divided by 4 positive divisors. The sum of these divisors (counting 1215391381) is 1, the average is 0.25.

Base conversion 1215391381

Base System Value
2 Binary 1001000011100010110011010010101
3 Ternary 10010200222021112121
4 Quaternary 1020130112122111
5 Quinary 4442120011011
6 Senary 320334015541
8 Octal 11034263225
10 Decimal 1215391381
12 Duodecimal 29b0475b1
16 Hexadecimal 48716695
20 Vigesimal ijg3i91
36 Base36 k3m1zp

Cryptographic Hash Functions

md5 a30ec0189d742e2e03f63c43a9b1a1ec
sha1 c84e6b7d3545aedd1462c27cdd6edbf1df306235
sha256 6f55dc92892a33a5f130199a7bfae8e1f640b93634aab30f7950184b17d56649
sha512 48e15429b96f271bb5bdec549980a3dd038b8eea3e2a4c98c094073136489861c95dc28a66c752b86c714a3fed51dd5c09088368e56b7b9c19c91216e46265ee
ripemd-160 1f696d69aa335c57981597fa84f319dabdf7ca87

1215391381 as geometric shapes

Circle

Radius = n
Diameter 2430782762
Circumference 7636529267.5719
Area 4.6406859262806E+18

Sphere

Radius = n
Volume 7.5203329023059E+27
Surface area 1.8562743705122E+19
Circumference 7636529267.5719

Square

Length = n
Perimeter 4861565524
Area 1477176209009087161
Diagonal 1718822974.6016

Cube

Length = n
Surface area 8863057254054522966
Volume 1.7953472326479E+27
Space diagonal 2105119622.9733

Equilateral Triangle

Length = n
Perimeter 3646174143
Area 6.3963606143393E+17
Altitude 1052559811.4867

Triangular Pyramid

Length = n
Surface area 6.3963606143393E+17
Volume 2.1158370046497E+26
Height 572940991.53386