68388640 (number)

68388640 is an even 8-digits composite number following 68388639 and preceding 68388641. In scientific notation, it is written as 6.8388640 × 10^7. The sum of its digits is 43. It has a total of 7 prime factors and 24 positive divisors. There are 27355392 positive integers (up to 68388640) that are relatively prime to 68388640.

Interesting facts

Basic properties

Name

Name sixty-eight million three hundred eighty-eight thousand six hundred forty

Notation

Scientific notation 6.8388640 × 10^7
Engineering notation 6.8388640 × 10^6

Prime Factorization of 68388640

Prime Factorization 2 × 2 × 2 × 2 × 2 × 5 × 427429

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 4274290
Product of the distinct prime numbers

The prime factorization of 68388640 is 2 × 2 × 2 × 2 × 2 × 5 × 427429. Since it has a total of 7 prime factors.

Most popular turbo-numbers

1, 8, 46, 69, 907, 576, 5203, 6489, 28771, 65670, 372197, 968613, 9997388, 493443, 94924057, 36859174, 562269825, 533911347, 8089713122, 3897863015

Basic calculations (n = 68388640)

Multiplication

n×y
n×2 136777280
n×3 205165920
n×4 273554560
n×5 341943200

Division

n÷y
n÷2 34194320
n÷3 22796213.333333
n÷3 17097160
n÷5 13677728

Exponentiation

ny
n2 4677006081049600
n3 3.1985408515471E+23
n4 2.1874385882175E+31
n5 1.4959595013171E+39

Nth Root

y√n
2√n 8269.7424385527
3√n 408.9416287954
4√n 90.93812423045
5√n 36.897487429462

Divisors of 68388640

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 427429, 854858, 1709716, 2137145, 3419432, 4274290, 6838864, 8548580, 13677728, 17097160, 34194320, 68388640

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -68388639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 68388640 can be divided by 24 positive divisors. The sum of these divisors (counting 68388640) is 1, the average is 0.041666666666667.

Base conversion 68388640

Base System Value
2 Binary 100000100111000011100100000
3 Ternary 11202200111120121
4 Quaternary 10010320130200
5 Quinary 120001414030
6 Senary 10441450024
8 Octal 404703440
10 Decimal 68388640
12 Duodecimal 1aaa0914
16 Hexadecimal 4138720
20 Vigesimal 1178bc0
36 Base36 14pt0g

Cryptographic Hash Functions

md5 7db2b75534ac9845dae7af71bb9ff5b6
sha1 1281c1422e980a59b83f9b973e789f28ae7a17c2
sha256 98786c83de08f86f5c58da00f7aba13524c0a5960ece2f98fd878736b37c71b8
sha512 f6fb2d4146a116eb27944c13720db8d1bc9ada2ba5fdc6efae537cf91d195e943e519a28c081eba90e317fd445efefa86b86ce31bf71ad1784da32827b02dae8
ripemd-160 d0edced60919c554ce81160938e9b6bde6734472

68388640 as geometric shapes

Circle

Radius = n
Diameter 136777280
Circumference 429698498.02599
Area 1.469324794502E+16

Sphere

Radius = n
Volume 1.339801658857E+24
Surface area 5.8772991780081E+16
Circumference 429698498.02599

Square

Length = n
Perimeter 273554560
Area 4677006081049600
Diagonal 96716142.200251

Cube

Length = n
Surface area 28062036486297600
Volume 3.1985408515471E+23
Space diagonal 118452599.14054

Equilateral Triangle

Length = n
Perimeter 205165920
Area 2.0252030399216E+15
Altitude 59226299.570269

Triangular Pyramid

Length = n
Surface area 2.0252030399216E+15
Volume 3.7695165433853E+22
Height 32238714.06675