1215391385 (number)

1215391385 is an odd 10-digits composite number following 1215391384 and preceding 1215391386. In scientific notation, it is written as 1.215391385 × 10^9. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 897511680 positive integers (up to 1215391385) that are relatively prime to 1215391385.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.215391385 × 10^9
Engineering notation 1.215391385 × 10^9

Prime Factorization of 1215391385

Prime Factorization 5 × 169 × 13 × 110641

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1215391385
Product of the distinct prime numbers

The prime factorization of 1215391385 is 5 × 169 × 13 × 110641. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 3, 73, 31, 515, 883, 2006, 8274, 30414, 77520, 972436, 404749, 5544587, 8407421, 30882211, 63974953, 126403071, 187266500, 9635604558, 8422988020

Basic calculations (n = 1215391385)

Multiplication

n×y
n×2 2430782770
n×3 3646174155
n×4 4861565540
n×5 6076956925

Division

n÷y
n÷2 607695692.5
n÷3 405130461.66667
n÷3 303847846.25
n÷5 243078277

Exponentiation

ny
n2 1477176218732218225
n3 1.795347250374E+27
n4 2.182049581188E+36
n5 2.6520442626188E+45

Nth Root

y√n
2√n 34862.463840067
3√n 1067.1825563868
4√n 186.71492666648
5√n 65.605950316965

Divisors of 1215391385

1, 5, 13, 65, 169, 845, 2197, 10985, 110641, 553205, 1438333, 7191665, 18698329, 93491645, 243078277, 1215391385

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 -1215391384
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 1215391385 can be divided by 16 positive divisors. The sum of these divisors (counting 1215391385) is 1, the average is 0.0625.

Base conversion 1215391385

Base System Value
2 Binary 1001000011100010110011010011001
3 Ternary 10010200222021112202
4 Quaternary 1020130112122121
5 Quinary 4442120011020
6 Senary 320334015545
8 Octal 11034263231
10 Decimal 1215391385
12 Duodecimal 29b0475b5
16 Hexadecimal 48716699
20 Vigesimal ijg3i95
36 Base36 k3m1zt

Cryptographic Hash Functions

md5 3960703e05974fa16b6f0c0c8a6b9370
sha1 a31865de6693648cbebb234464aad522ee275c23
sha256 bd46e7be7d1856251d379337ac2166fabdc4a47bbaf145d35d65baddf67d59a3
sha512 be309332f5027c14c628aad1ba51c0a8c5f579b2b589f04f6dabf5d2e13f88b35f30c6315af9bdd42276d4bf638b6ed6bf23d003a395b220d79c57459bcf2363
ripemd-160 a3d51e1206cb8385ac64e479d0664bd884af61c5

1215391385 as geometric shapes

Circle

Radius = n
Diameter 2430782770
Circumference 7636529292.7046
Area 4.6406859568267E+18

Sphere

Radius = n
Volume 7.5203329765568E+27
Surface area 1.8562743827307E+19
Circumference 7636529292.7046

Square

Length = n
Perimeter 4861565540
Area 1477176218732218225
Diagonal 1718822980.2584

Cube

Length = n
Surface area 8863057312393309350
Volume 1.795347250374E+27
Space diagonal 2105119629.9015

Equilateral Triangle

Length = n
Perimeter 3646174155
Area 6.3963606564417E+17
Altitude 1052559814.9508

Triangular Pyramid

Length = n
Surface area 6.3963606564417E+17
Volume 2.1158370255401E+26
Height 572940993.41947