81330790 (number)

81330790 is an even 8-digits composite number following 81330789 and preceding 81330791. In scientific notation, it is written as 8.1330790 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors. There are 31410400 positive integers (up to 81330790) that are relatively prime to 81330790.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred thirty thousand seven hundred ninety

Notation

Scientific notation 8.1330790 × 10^7
Engineering notation 8.1330790 × 10^6

Prime Factorization of 81330790

Prime Factorization 2 × 5 × 29 × 280451

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81330790
Product of the distinct prime numbers

The prime factorization of 81330790 is 2 × 5 × 29 × 280451. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 7, 60, 100, 392, 618, 5074, 5615, 76461, 4282, 531182, 834438, 2458455, 4201545, 3278572, 43492018, 36394105, 122162049, 5989185084, 7278182729

Basic calculations (n = 81330790)

Multiplication

n×y
n×2 162661580
n×3 243992370
n×4 325323160
n×5 406653950

Division

n÷y
n÷2 40665395
n÷3 27110263.333333
n÷3 20332697.5
n÷5 16266158

Exponentiation

ny
n2 6614697402024100
n3 5.3797856531757E+23
n4 4.3754221720344E+31
n5 3.5585654183508E+39

Nth Root

y√n
2√n 9018.358498086
3√n 433.26306092559
4√n 94.9650382935
5√n 38.198912427453

Divisors of 81330790

1, 2, 5, 10, 29, 58, 145, 290, 280451, 560902, 1402255, 2804510, 8133079, 16266158, 40665395, 81330790

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 -81330789
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 81330790 can be divided by 16 positive divisors. The sum of these divisors (counting 81330790) is 1, the average is 0.0625.

Base conversion 81330790

Base System Value
2 Binary 100110110010000001001100110
3 Ternary 12200001000212111
4 Quaternary 10312100021212
5 Quinary 131310041130
6 Senary 12023111234
8 Octal 466201146
10 Decimal 81330790
12 Duodecimal 232a251a
16 Hexadecimal 4d90266
20 Vigesimal 15866ja
36 Base36 1cf78m

Cryptographic Hash Functions

md5 c18bcf74df6ab43f802f48c3cff76312
sha1 91fafca0e3392a13be0044853ea925ea3987bdc5
sha256 9de138bcb7b2b08b87aaaa41d2a57021c975c2910e8ba52e9d9a6e7c7b00b420
sha512 9e6716eb60267f2c2cf062228b09a332f25eecb1bbe159c541145175bed0652b3174e273298b06cac52f61a301e08d24c6a0d948213125a7cce913c77b65ed95
ripemd-160 997aa805f16cde983c523eb979bd8edc93d84ecb

81330790 as geometric shapes

Circle

Radius = n
Diameter 162661580
Circumference 511016424.74931
Area 2.0780684763918E+16

Sphere

Radius = n
Volume 2.2534793447873E+24
Surface area 8.3122739055674E+16
Circumference 511016424.74931

Square

Length = n
Perimeter 325323160
Area 6614697402024100
Diagonal 115019106.25652

Cube

Length = n
Surface area 39688184412144600
Volume 5.3797856531757E+23
Space diagonal 140869060.49971

Equilateral Triangle

Length = n
Perimeter 243992370
Area 2.8642479942499E+15
Altitude 70434530.249857

Triangular Pyramid

Length = n
Surface area 2.8642479942499E+15
Volume 6.3401381944844E+22
Height 38339702.085506