78388640 (number)

78388640 is an even 8-digits composite number following 78388639 and preceding 78388641. In scientific notation, it is written as 7.8388640 × 10^7. The sum of its digits is 44. It has a total of 9 prime factors and 72 positive divisors. There are 28497920 positive integers (up to 78388640) that are relatively prime to 78388640.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.8388640 × 10^7
Engineering notation 7.8388640 × 10^6

Prime Factorization of 78388640

Prime Factorization 2 × 2 × 2 × 2 × 2 × 5 × 11 × 11 × 4049

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 445390
Product of the distinct prime numbers

The prime factorization of 78388640 is 2 × 2 × 2 × 2 × 2 × 5 × 11 × 11 × 4049. Since it has a total of 9 prime factors.

Most popular turbo-numbers

1, 2, 14, 62, 776, 193, 7306, 5198, 99959, 99916, 572474, 845070, 7367307, 9864307, 64907286, 17943152, 50938654, 371628517, 286822005, 7011926327

Basic calculations (n = 78388640)

Multiplication

n×y
n×2 156777280
n×3 235165920
n×4 313554560
n×5 391943200

Division

n÷y
n÷2 39194320
n÷3 26129546.666667
n÷3 19597160
n÷5 15677728

Exponentiation

ny
n2 6144778881049600
n3 4.816808595862E+23
n4 3.7758307496993E+31
n5 2.9598223733911E+39

Nth Root

y√n
2√n 8853.735934621
3√n 427.97431936054
4√n 94.094292784531
5√n 37.918454335921

Divisors of 78388640

1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1760, 1936, 2420, 3872, 4049, 4840, 8098, 9680, 16196, 19360, 20245, 32392, 40490, 44539, 64784, 80980, 89078, 129568, 161960, 178156, 222695, 323920, 356312, 445390, 489929, 647840, 712624, 890780, 979858, 1425248, 1781560, 1959716, 2449645, 3563120, 3919432, 4899290, 7126240, 7838864, 9798580, 15677728, 19597160, 39194320, 78388640

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -78388639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78388640 can be divided by 72 positive divisors. The sum of these divisors (counting 78388640) is 1, the average is 0.013888888888889.

Base conversion 78388640

Base System Value
2 Binary 100101011000001110110100000
3 Ternary 12110111112222222
4 Quaternary 10223001312200
5 Quinary 130031414030
6 Senary 11440050212
8 Octal 453016640
10 Decimal 78388640
12 Duodecimal 22303968
16 Hexadecimal 4ac1da0
20 Vigesimal 149ibc0
36 Base36 1ao528

Cryptographic Hash Functions

md5 8dfb2f49e91746daab2d9452ed1a65d2
sha1 d55dc180949d004de9e3004c5337d5a8dd9faa7f
sha256 d046fb3f16974fe2fec224d50077a642ff1887829072e1159303eef8ce849373
sha512 43ee5fb6034164b7190f29b3ece79422853e5eae924046bd4c049dfc8c12a0dc380da53172be248281a2a55096a9635cf30a251d6e235ed27c0f1c855b9abe67
ripemd-160 4a68ec7e31a616b371564cadf8ccca61b9a7bb2e

78388640 as geometric shapes

Circle

Radius = n
Diameter 156777280
Circumference 492530351.09779
Area 1.9304392190639E+16

Sphere

Radius = n
Volume 2.0176600664678E+24
Surface area 7.7217568762557E+16
Circumference 492530351.09779

Square

Length = n
Perimeter 313554560
Area 6144778881049600
Diagonal 110858277.82398

Cube

Length = n
Surface area 36868673286297600
Volume 4.816808595862E+23
Space diagonal 135773107.21623

Equilateral Triangle

Length = n
Perimeter 235165920
Area 2.6607673058135E+15
Altitude 67886553.608113

Triangular Pyramid

Length = n
Surface area 2.6607673058135E+15
Volume 5.6766633696861E+22
Height 36952759.274661