78421918 (number)

78421918 is an even 8-digits composite number following 78421917 and preceding 78421919. In scientific notation, it is written as 7.8421918 × 10^7. The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors. There are 36904416 positive integers (up to 78421918) that are relatively prime to 78421918.

Interesting facts

Basic properties

Name

Name seventy-eight million four hundred twenty-one thousand nine hundred eighteen

Notation

Scientific notation 7.8421918 × 10^7
Engineering notation 7.8421918 × 10^6

Prime Factorization of 78421918

Prime Factorization 2 × 17 × 2306527

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 78421918
Product of the distinct prime numbers

The prime factorization of 78421918 is 2 × 17 × 2306527. Since it has a total of 3 prime factors.

Most popular turbo-numbers

10, 1, 61, 92, 126, 238, 9795, 1200, 20400, 76096, 39944, 93684, 3548155, 1738206, 43811507, 31631846, 299187276, 909466015, 6690606539, 2132478283

Basic calculations (n = 78421918)

Multiplication

n×y
n×2 156843836
n×3 235265754
n×4 313687672
n×5 392109590

Division

n÷y
n÷2 39210959
n÷3 26140639.333333
n÷3 19605479.5
n÷5 15684383.6

Exponentiation

ny
n2 6149997222798724
n3 4.8229457790655E+23
n4 3.7822465840432E+31
n5 2.9661103146962E+39

Nth Root

y√n
2√n 8855.6150548677
3√n 428.03487283909
4√n 94.104277558822
5√n 37.921673261783

Divisors of 78421918

1, 2, 17, 34, 2306527, 4613054, 39210959, 78421918

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -78421917
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78421918 can be divided by 8 positive divisors. The sum of these divisors (counting 78421918) is 1, the average is 0.125.

Base conversion 78421918

Base System Value
2 Binary 100101011001001111110011110
3 Ternary 12110120020122111
4 Quaternary 10223021332132
5 Quinary 130034000133
6 Senary 11440504234
8 Octal 453117636
10 Decimal 78421918
12 Duodecimal 2231b07a
16 Hexadecimal 4ac9f9e
20 Vigesimal 14a2efi
36 Base36 1aouqm

Cryptographic Hash Functions

md5 12f70a505297887eaf5d8bc6342386c9
sha1 0fd3f12c44b283b57c1bbfe2fd27f674ac6b8ef6
sha256 ca8b97fa6b48da7636911523cdd236a2a739e7ad8ece92a3b906f886a2f0f633
sha512 3dd684771cd730c42e2e6ac17f6a8c0799f11550e1dfbe42c62e9f5d905981d19de9c5b9fea4c005000e059fe45cb135983db5ff9f99ab37dba05ead534deafe
ripemd-160 df92fc0ba1facb44e77eeaa69a53e75d5d53529f

78421918 as geometric shapes

Circle

Radius = n
Diameter 156843836
Circumference 492739442.93844
Area 1.9320786094742E+16

Sphere

Radius = n
Volume 2.0202308037565E+24
Surface area 7.7283144378968E+16
Circumference 492739442.93844

Square

Length = n
Perimeter 313687672
Area 6149997222798724
Diagonal 110905340.02291

Cube

Length = n
Surface area 36899983336792344
Volume 4.8229457790655E+23
Space diagonal 135830746.403

Equilateral Triangle

Length = n
Perimeter 235265754
Area 2.6630269140737E+15
Altitude 67915373.2015

Triangular Pyramid

Length = n
Surface area 2.6630269140737E+15
Volume 5.6838961094537E+22
Height 36968446.674304