81344487 (number)

81344487 is an odd 8-digits composite number following 81344486 and preceding 81344488. In scientific notation, it is written as 8.1344487 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors. There are 45239040 positive integers (up to 81344487) that are relatively prime to 81344487.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred forty-four thousand four hundred eighty-seven

Notation

Scientific notation 8.1344487 × 10^7
Engineering notation 8.1344487 × 10^6

Prime Factorization of 81344487

Prime Factorization 7 × 3 × 89 × 71 × 613

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81344487
Product of the distinct prime numbers

The prime factorization of 81344487 is 7 × 3 × 89 × 71 × 613. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 4, 72, 34, 200, 756, 2122, 7309, 94299, 50867, 743285, 827705, 817848, 1378612, 90447120, 47311854, 264945695, 92357021, 4737486842, 2434550260

Basic calculations (n = 81344487)

Multiplication

n×y
n×2 162688974
n×3 244033461
n×4 325377948
n×5 406722435

Division

n÷y
n÷2 40672243.5
n÷3 27114829
n÷3 20336121.75
n÷5 16268897.4

Exponentiation

ny
n2 6616925565293169
n3 5.3825041562596E+23
n4 4.378370393663E+31
n5 3.5615629356851E+39

Nth Root

y√n
2√n 9019.1178615206
3√n 433.28738164937
4√n 94.969036330378
5√n 38.200198964228

Divisors of 81344487

1, 3, 7, 21, 71, 89, 213, 267, 497, 613, 623, 1491, 1839, 1869, 4291, 6319, 12873, 18957, 43523, 44233, 54557, 130569, 132699, 163671, 304661, 381899, 913983, 1145697, 3873547, 11620641, 27114829, 81344487

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81344486
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81344487 can be divided by 32 positive divisors. The sum of these divisors (counting 81344487) is 1, the average is 0.03125.

Base conversion 81344487

Base System Value
2 Binary 100110110010011011111100111
3 Ternary 12200001201122210
4 Quaternary 10312103133213
5 Quinary 131311010422
6 Senary 12023254503
8 Octal 466233747
10 Decimal 81344487
12 Duodecimal 232aa433
16 Hexadecimal 4d937e7
20 Vigesimal 1588147
36 Base36 1cfht3

Cryptographic Hash Functions

md5 48d30234c800ec462f36b5411fcd8526
sha1 7a485c3cbebfad6ac2287ec737460fde38fc9ae5
sha256 a9d10a5c0d66e8e3b50523bfc27d01d53b04fe150d3dd706449e4b56a86a6850
sha512 57ff7d77f9f0ff20295bef5cf9c8ddad03ca251324ffb91a9e991053acd22c88755bf9b57ec147432270a1c1558d5774bd1ec26d964c19e0dabd076c1ca3e415
ripemd-160 05cc7864c03b6cb61763fe9a933b04c82835a7d9

81344487 as geometric shapes

Circle

Radius = n
Diameter 162688974
Circumference 511102485.53846
Area 2.0787684745276E+16

Sphere

Radius = n
Volume 2.2546180686962E+24
Surface area 8.3150738981102E+16
Circumference 511102485.53846

Square

Length = n
Perimeter 325377948
Area 6616925565293169
Diagonal 115038476.73968

Cube

Length = n
Surface area 39701553391759014
Volume 5.3825041562596E+23
Space diagonal 140892784.39963

Equilateral Triangle

Length = n
Perimeter 244033461
Area 2.8652128172473E+15
Altitude 70446392.199813

Triangular Pyramid

Length = n
Surface area 2.8652128172473E+15
Volume 6.3433419810932E+22
Height 38346158.913227