18781013 (number)

18781013 is an odd 8-digits prime number following 18781012 and preceding 18781014. In scientific notation, it is written as 1.8781013 × 10^7. The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors. There are 18781012 positive integers (up to 18781013) that are relatively prime to 18781013.

Interesting facts

Basic properties

Name

Name eighteen million seven hundred eighty-one thousand thirteen

Notation

Scientific notation 1.8781013 × 10^7
Engineering notation 1.8781013 × 10^6

Prime Factorization of 18781013

Prime Factorization 18781013

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 18781013
Product of the distinct prime numbers

The prime factorization of 18781013 is 18781013. Since it has a total of 1 prime factors.

Most popular turbo-numbers

1, 6, 31, 30, 433, 787, 8213, 2768, 55509, 27453, 838790, 486846, 5620549, 3080767, 37252027, 59199806, 734685059, 929043625, 9294427984, 7721533639

Basic calculations (n = 18781013)

Multiplication

n×y
n×2 37562026
n×3 56343039
n×4 75124052
n×5 93905065

Division

n÷y
n÷2 9390506.5
n÷3 6260337.6666667
n÷3 4695253.25
n÷5 3756202.6

Exponentiation

ny
n2 352726449306169
n3 6.624560029863E+21
n4 1.2441594804014E+29
n5 2.3366575375491E+36

Nth Root

y√n
2√n 4333.7066121278
3√n 265.81103374776
4√n 65.830894055358
5√n 28.493369016911

Divisors of 18781013

1, 18781013

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 18781014
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 9390507
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4333.7067275025
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999998935095
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 18781013 can be divided by 2 positive divisors. The sum of these divisors (counting 18781013) is 18781014, the average is 9390507.

Base conversion 18781013

Base System Value
2 Binary 1000111101001001101010101
3 Ternary 1022100011201002
4 Quaternary 1013221031111
5 Quinary 14301443023
6 Senary 1510313045
8 Octal 107511525
10 Decimal 18781013
12 Duodecimal 6358785
16 Hexadecimal 11e9355
20 Vigesimal 5h7cad
36 Base36 b6jit

Cryptographic Hash Functions

md5 d78a683ff18ec3e3449014a574b4ad20
sha1 060b9c5fe46dfff825fc10d3df227098f3e12957
sha256 d898aaa1f1367413c0724e5daeec92f53dbee8999f42c6be44bf54011fc2d0ef
sha512 2fb815143d0f9b12914f0be0df0a30490c1c8219d056a0778bd9e554623b88fb9dee6678b19495ee0f5380028b1445e1389588b2bce8e38ff44554153f0a8ca5
ripemd-160 12ec5a50dede315487f7dee3ccda23650aa236af

18781013 as geometric shapes

Circle

Radius = n
Diameter 37562026
Circumference 118004584.93555
Area 1.1081228218671E+15

Sphere

Radius = n
Volume 2.774889216411E+22
Surface area 4.4324912874683E+15
Circumference 118004584.93555

Square

Length = n
Perimeter 75124052
Area 352726449306169
Diagonal 26560363.299705

Cube

Length = n
Surface area 2116358695837014
Volume 6.624560029863E+21
Space diagonal 32529668.733612

Equilateral Triangle

Length = n
Perimeter 56343039
Area 1.5273503284291E+14
Altitude 16264834.366806

Triangular Pyramid

Length = n
Surface area 1.5273503284291E+14
Volume 7.8071188658225E+20
Height 8853454.4332351