78865721 (number)

78865721 is an odd 8-digits composite number following 78865720 and preceding 78865722. In scientific notation, it is written as 7.8865721 × 10^7. The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors. There are 71696100 positive integers (up to 78865721) that are relatively prime to 78865721.

Interesting facts

Basic properties

Name

Name seventy-eight million eight hundred sixty-five thousand seven hundred twenty-one

Notation

Scientific notation 7.8865721 × 10^7
Engineering notation 7.8865721 × 10^6

Prime Factorization of 78865721

Prime Factorization 11 × 7169611

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 78865721
Product of the distinct prime numbers

The prime factorization of 78865721 is 11 × 7169611. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 10, 98, 57, 949, 65, 5036, 3200, 56025, 55162, 18923, 42819, 6611927, 3370251, 42376907, 97109992, 825306351, 313613217, 6856773621, 2585130587

Basic calculations (n = 78865721)

Multiplication

n×y
n×2 157731442
n×3 236597163
n×4 315462884
n×5 394328605

Division

n÷y
n÷2 39432860.5
n÷3 26288573.666667
n÷3 19716430.25
n÷5 15773144.2

Exponentiation

ny
n2 6219801948849841
n3 4.9052916517325E+23
n4 3.8685936282916E+31
n5 3.0509942575123E+39

Nth Root

y√n
2√n 8880.6374208161
3√n 428.84079522774
4√n 94.237133980274
5√n 37.96449747384

Divisors of 78865721

1, 11, 7169611, 78865721

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 -78865720
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 78865721 can be divided by 4 positive divisors. The sum of these divisors (counting 78865721) is 1, the average is 0.25.

Base conversion 78865721

Base System Value
2 Binary 100101100110110010100111001
3 Ternary 12111101210102122
4 Quaternary 10230312110321
5 Quinary 130142200341
6 Senary 11454211025
8 Octal 454662471
10 Decimal 78865721
12 Duodecimal 224b3a75
16 Hexadecimal 4b36539
20 Vigesimal 14ci461
36 Base36 1ayd6h

Cryptographic Hash Functions

md5 9ad7d69377d2b4fd5c859baf07cef181
sha1 da443157ecdae90180e9345b1510457dc1efe135
sha256 1f12931edae4cf83975aa334c4c799f63e0dc75a94e9ed96f2751f6de1e47394
sha512 d956f38d52f6ab6d2f74836e1bcb7c8bf6514446793d8a00619489214a49fabae83f52c406c1156379a21e50e63f94fcb9a613cd8b930477fc722d894c31abf9
ripemd-160 a6440ca86505c9470f0bb5a727b91d2e57ba09b8

78865721 as geometric shapes

Circle

Radius = n
Diameter 157731442
Circumference 495527939.42732
Area 1.954008410929E+16

Sphere

Radius = n
Volume 2.0547237622397E+24
Surface area 7.8160336437161E+16
Circumference 495527939.42732

Square

Length = n
Perimeter 315462884
Area 6219801948849841
Diagonal 111532972.24453

Cube

Length = n
Surface area 37318811693099046
Volume 4.9052916517325E+23
Space diagonal 136599435.74755

Equilateral Triangle

Length = n
Perimeter 236597163
Area 2.693253247106E+15
Altitude 68299717.873776

Triangular Pyramid

Length = n
Surface area 2.693253247106E+15
Volume 5.780941651063E+22
Height 37177657.414844