78909990 (number)

78909990 is an even 8-digits composite number following 78909989 and preceding 78909991. In scientific notation, it is written as 7.8909990 × 10^7. The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors. There are 21042656 positive integers (up to 78909990) that are relatively prime to 78909990.

Interesting facts

Basic properties

Name

Name seventy-eight million nine hundred nine thousand nine hundred ninety

Notation

Scientific notation 7.8909990 × 10^7
Engineering notation 7.8909990 × 10^6

Prime Factorization of 78909990

Prime Factorization 2 × 3 × 5 × 2630333

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 78909990
Product of the distinct prime numbers

The prime factorization of 78909990 is 2 × 3 × 5 × 2630333. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 33, 99, 848, 589, 1651, 1366, 64415, 9309, 640080, 289001, 4746694, 6534840, 87188248, 51600122, 90581184, 920975680, 9165972057, 9779426257

Basic calculations (n = 78909990)

Multiplication

n×y
n×2 157819980
n×3 236729970
n×4 315639960
n×5 394549950

Division

n÷y
n÷2 39454995
n÷3 26303330
n÷3 19727497.5
n÷5 15781998

Exponentiation

ny
n2 6226786521800100
n3 4.9135566216738E+23
n4 3.8772870388071E+31
n5 3.059566814594E+39

Nth Root

y√n
2√n 8883.1295161109
3√n 428.92101936029
4√n 94.250355522464
5√n 37.968758572555

Divisors of 78909990

1, 2, 3, 5, 6, 10, 15, 30, 2630333, 5260666, 7890999, 13151665, 15781998, 26303330, 39454995, 78909990

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -78909989
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78909990 can be divided by 16 positive divisors. The sum of these divisors (counting 78909990) is 1, the average is 0.0625.

Base conversion 78909990

Base System Value
2 Binary 100101101000001001000100110
3 Ternary 12111111001011020
4 Quaternary 10231001020212
5 Quinary 130200104430
6 Senary 11455152010
8 Octal 455011046
10 Decimal 78909990
12 Duodecimal 22515606
16 Hexadecimal 4b41226
20 Vigesimal 14d3eja
36 Base36 1azbc6

Cryptographic Hash Functions

md5 67c7c1330cfbe63b72e1afaa67024504
sha1 07b400856f9e7a7d24a2d1c3b96b6531818a85a2
sha256 1a51ec1e6f80e176845833023126edac0b9c88f23bb305e80d281a994cd43d14
sha512 5f225da1d01397cb6d1bf98681416664dad5f835662592924ad24472d669c6b96fbba1df400ce5a4dc39003716665c9c629a40d0381fefb9453aa8cd840ef009
ripemd-160 9babe8910f8b91664e0a919dd6884c6c635eff9c

78909990 as geometric shapes

Circle

Radius = n
Diameter 157819980
Circumference 495806089.75769
Area 1.9562026792359E+16

Sphere

Radius = n
Volume 2.0581857847531E+24
Surface area 7.8248107169437E+16
Circumference 495806089.75769

Square

Length = n
Perimeter 315639960
Area 6226786521800100
Diagonal 111595578.06473

Cube

Length = n
Surface area 37360719130800600
Volume 4.9135566216738E+23
Space diagonal 136676111.90475

Equilateral Triangle

Length = n
Perimeter 236729970
Area 2.6962776559107E+15
Altitude 68338055.952376

Triangular Pyramid

Length = n
Surface area 2.6962776559107E+15
Volume 5.7906820115494E+22
Height 37198526.021575