68721818 (number)

68721818 is an even 8-digits composite number following 68721817 and preceding 68721819. In scientific notation, it is written as 6.8721818 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors. There are 31201200 positive integers (up to 68721818) that are relatively prime to 68721818.

Interesting facts

Basic properties

Name

Name sixty-eight million seven hundred twenty-one thousand eight hundred eighteen

Notation

Scientific notation 6.8721818 × 10^7
Engineering notation 6.8721818 × 10^6

Prime Factorization of 68721818

Prime Factorization 2 × 11 × 2141 × 1459

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 68721818
Product of the distinct prime numbers

The prime factorization of 68721818 is 2 × 11 × 2141 × 1459. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 7, 88, 42, 315, 832, 9528, 6147, 42945, 27602, 937100, 887093, 5096653, 1704680, 28328733, 40017871, 673686686, 138645952, 6823087264, 708783745

Basic calculations (n = 68721818)

Multiplication

n×y
n×2 137443636
n×3 206165454
n×4 274887272
n×5 343609090

Division

n÷y
n÷2 34360909
n÷3 22907272.666667
n÷3 17180454.5
n÷5 13744363.6

Exponentiation

ny
n2 4722688269225124
n3 3.2455172370842E+23
n4 2.2303784488277E+31
n5 1.5327566183146E+39

Nth Root

y√n
2√n 8289.8623631518
3√n 409.60465162081
4√n 91.048681281783
5√n 36.933369249137

Divisors of 68721818

1, 2, 11, 22, 1459, 2141, 2918, 4282, 16049, 23551, 32098, 47102, 3123719, 6247438, 34360909, 68721818

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 -68721817
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 68721818 can be divided by 16 positive divisors. The sum of these divisors (counting 68721818) is 1, the average is 0.0625.

Base conversion 68721818

Base System Value
2 Binary 100000110001001110010011010
3 Ternary 11210022102121112
4 Quaternary 10012021302122
5 Quinary 120043044233
6 Senary 10452540322
8 Octal 406116232
10 Decimal 68721818
12 Duodecimal 1b0216a2
16 Hexadecimal 4189c9a
20 Vigesimal 119a4ai
36 Base36 14wy3e

Cryptographic Hash Functions

md5 c10b5b379567eaa87b08498fff33b77c
sha1 4bd56d64c248c31ec1548b6b02086047c80e94c1
sha256 f8f0214a001a9d4d3250d90b3331eec171f3ec0a1fc93c6d61548fd45e161753
sha512 1161683f45ca47e893b052471a447b3a9732ed0530a9add973be62267ba6bf595c695f13490b0588184f3dfd8363a9e0ec10c0308fd880144f6c505829d9d33d
ripemd-160 f46f0147e65f79ee36db7eae70435c0bb843b694

68721818 as geometric shapes

Circle

Radius = n
Diameter 137443636
Circumference 431791917.14027
Area 1.4836762771792E+16

Sphere

Radius = n
Volume 1.3594790812164E+24
Surface area 5.9347051087169E+16
Circumference 431791917.14027

Square

Length = n
Perimeter 274887272
Area 4722688269225124
Diagonal 97187327.046535

Cube

Length = n
Surface area 28336129615350744
Volume 3.2455172370842E+23
Space diagonal 119029680.3645

Equilateral Triangle

Length = n
Perimeter 206165454
Area 2.0449840076519E+15
Altitude 59514840.182251

Triangular Pyramid

Length = n
Surface area 2.0449840076519E+15
Volume 3.8248787446668E+22
Height 32395775.682178