78161381 (number)

78161381 is an odd 8-digits composite number following 78161380 and preceding 78161382. In scientific notation, it is written as 7.8161381 × 10^7. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 77960064 positive integers (up to 78161381) that are relatively prime to 78161381.

Interesting facts

Basic properties

Name

Name seventy-eight million one hundred sixty-one thousand three hundred eighty-one

Notation

Scientific notation 7.8161381 × 10^7
Engineering notation 7.8161381 × 10^6

Prime Factorization of 78161381

Prime Factorization 389 × 200929

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 78161381
Product of the distinct prime numbers

The prime factorization of 78161381 is 389 × 200929. Since it has a total of 2 prime factors.

Most popular turbo-numbers

10, 3, 47, 27, 907, 168, 7517, 4827, 90323, 22542, 702236, 395237, 3863926, 3967917, 21852164, 3347515, 620433012, 882898203, 1467617176, 3814757383

Basic calculations (n = 78161381)

Multiplication

n×y
n×2 156322762
n×3 234484143
n×4 312645524
n×5 390806905

Division

n÷y
n÷2 39080690.5
n÷3 26053793.666667
n÷3 19540345.25
n÷5 15632276.2

Exponentiation

ny
n2 6109201479827161
n3 4.7750362447053E+23
n4 3.7322342721122E+31
n5 2.9171658492382E+39

Nth Root

y√n
2√n 8840.8925454391
3√n 427.56033438195
4√n 94.026020576429
5√n 37.896442675764

Divisors of 78161381

1, 389, 200929, 78161381

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -78161380
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78161381 can be divided by 4 positive divisors. The sum of these divisors (counting 78161381) is 1, the average is 0.25.

Base conversion 78161381

Base System Value
2 Binary 100101010001010010111100101
3 Ternary 12110002000020222
4 Quaternary 10222022113211
5 Quinary 130002131011
6 Senary 11431134125
8 Octal 452122745
10 Decimal 78161381
12 Duodecimal 22214345
16 Hexadecimal 4a8a5e5
20 Vigesimal 148a391
36 Base36 1aj9ph

Cryptographic Hash Functions

md5 352944b30e34855eace80563e9021d66
sha1 c9877a33b9f06464ae38dcbef6f73e578996b0d1
sha256 32656667949e2efff3410dbf87a776058c32950cd8247ec78b757b83490beb31
sha512 a253f7902e1cee73e2b336a4c9662f06a1bbdfe962cb28f46b4d6f99d4ee59235b7d0cd2b618ad8fceb24c077c2d233ee6e222cbae19452b24f0b49f6f865238
ripemd-160 b2620bfce46e13ea6168e55d23af652095948c85

78161381 as geometric shapes

Circle

Radius = n
Diameter 156322762
Circumference 491102440.68807
Area 1.9192622488325E+16

Sphere

Radius = n
Volume 2.0001625049322E+24
Surface area 7.67704899533E+16
Circumference 491102440.68807

Square

Length = n
Perimeter 312645524
Area 6109201479827161
Diagonal 110536885.06401

Cube

Length = n
Surface area 36655208878962966
Volume 4.7750362447053E+23
Space diagonal 135379483.08175

Equilateral Triangle

Length = n
Perimeter 234484143
Area 2.6453618391839E+15
Altitude 67689741.540874

Triangular Pyramid

Length = n
Surface area 2.6453618391839E+15
Volume 5.6274341817378E+22
Height 36845628.35467