78836721 (number)

78836721 is an odd 8-digits composite number following 78836720 and preceding 78836722. In scientific notation, it is written as 7.8836721 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 52557812 positive integers (up to 78836721) that are relatively prime to 78836721.

Interesting facts

Basic properties

Name

Name seventy-eight million eight hundred thirty-six thousand seven hundred twenty-one

Notation

Scientific notation 7.8836721 × 10^7
Engineering notation 7.8836721 × 10^6

Prime Factorization of 78836721

Prime Factorization 3 × 26278907

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 78836721
Product of the distinct prime numbers

The prime factorization of 78836721 is 3 × 26278907. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 10, 81, 73, 786, 754, 7074, 4998, 60168, 74639, 108162, 15285, 4940109, 871734, 20194927, 46155702, 231156957, 379097662, 7008384298, 9358366679

Basic calculations (n = 78836721)

Multiplication

n×y
n×2 157673442
n×3 236510163
n×4 315346884
n×5 394183605

Division

n÷y
n÷2 39418360.5
n÷3 26278907
n÷3 19709180.25
n÷5 15767344.2

Exponentiation

ny
n2 6215228578031841
n3 4.8998824135752E+23
n4 3.8629066277184E+31
n5 3.0453889205848E+39

Nth Root

y√n
2√n 8879.0045050107
3√n 428.78822524948
4√n 94.228469715955
5√n 37.961705050503

Divisors of 78836721

1, 3, 26278907, 78836721

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 -78836720
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 78836721 can be divided by 4 positive divisors. The sum of these divisors (counting 78836721) is 1, the average is 0.25.

Base conversion 78836721

Base System Value
2 Binary 100101100101111001111110001
3 Ternary 12111100022122120
4 Quaternary 10230233033301
5 Quinary 130140233341
6 Senary 11453424453
8 Octal 454571761
10 Decimal 78836721
12 Duodecimal 2249b129
16 Hexadecimal 4b2f3f1
20 Vigesimal 14cebg1
36 Base36 1axqsx

Cryptographic Hash Functions

md5 b081782c281d65ad8c928dcda006c4a1
sha1 053a481da1f8506baa0700842b5787607e7299fb
sha256 fc7188607378de118e05a4ba5f3e6d5aba431f84e8d9b72d09952e31200d2681
sha512 fdc92b296815903227700e9ec878cd30c1fec6d2f657449e8f53e3d8cf78a5890c543d75e8e32054790bb041a9b6e905f8ed2895d74e8e1f9bb2dbea42e01750
ripemd-160 feddc25c23893dab2d7a2efd60b7bb13a9e1c03a

78836721 as geometric shapes

Circle

Radius = n
Diameter 157673442
Circumference 495345727.05342
Area 1.9525716441126E+16

Sphere

Radius = n
Volume 2.0524579458589E+24
Surface area 7.8102865764505E+16
Circumference 495345727.05342

Square

Length = n
Perimeter 315346884
Area 6215228578031841
Diagonal 111491960.05122

Cube

Length = n
Surface area 37291371468191046
Volume 4.8998824135752E+23
Space diagonal 136549206.27413

Equilateral Triangle

Length = n
Perimeter 236510163
Area 2.6912729194513E+15
Altitude 68274603.137066

Triangular Pyramid

Length = n
Surface area 2.6912729194513E+15
Volume 5.7745668027596E+22
Height 37163986.683741