81497847 (number)

81497847 is an odd 8-digits composite number following 81497846 and preceding 81497848. In scientific notation, it is written as 8.1497847 × 10^7. The sum of its digits is 48. It has a total of 5 prime factors and 24 positive divisors. There are 50256640 positive integers (up to 81497847) that are relatively prime to 81497847.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand eight hundred forty-seven

Notation

Scientific notation 8.1497847 × 10^7
Engineering notation 8.1497847 × 10^6

Prime Factorization of 81497847

Prime Factorization 3 × 17 × 71 × 71 × 317

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1147857
Product of the distinct prime numbers

The prime factorization of 81497847 is 3 × 17 × 71 × 71 × 317. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 8, 85, 26, 986, 659, 2125, 3415, 46196, 95484, 415987, 717125, 5759064, 7389149, 91351961, 60178835, 952324510, 876520699, 7144172399, 9100428498

Basic calculations (n = 81497847)

Multiplication

n×y
n×2 162995694
n×3 244493541
n×4 325991388
n×5 407489235

Division

n÷y
n÷2 40748923.5
n÷3 27165949
n÷3 20374461.75
n÷5 16299569.4

Exponentiation

ny
n2 6641899065635409
n3 5.413004738406E+23
n4 4.4114823198089E+31
n5 3.5952631114299E+39

Nth Root

y√n
2√n 9027.615798205
3√n 433.55950514091
4√n 95.013766361538
5√n 38.214591997514

Divisors of 81497847

1, 3, 17, 51, 71, 213, 317, 951, 1207, 3621, 5041, 5389, 15123, 16167, 22507, 67521, 85697, 257091, 382619, 1147857, 1597997, 4793991, 27165949, 81497847

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81497846
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81497847 can be divided by 24 positive divisors. The sum of these divisors (counting 81497847) is 1, the average is 0.041666666666667.

Base conversion 81497847

Base System Value
2 Binary 100110110111000111011110111
3 Ternary 12200100112000210
4 Quaternary 10312320323313
5 Quinary 131330412342
6 Senary 12030440503
8 Octal 466707367
10 Decimal 81497847
12 Duodecimal 23363133
16 Hexadecimal 4db8ef7
20 Vigesimal 15974c7
36 Base36 1cis53

Cryptographic Hash Functions

md5 c0a0a93480837b87656cf5d3ef4ad44c
sha1 993c4632a653421f5f301f2a45f35ef74899b0ea
sha256 0990ca07208c8b04d119a44e51dd45a5373c8753e6efaf9d08d8a952f6b0475b
sha512 483259f6f225b0f96860effdb3b9d5e1d84d5ca949034ec46805d4a10737dd5c63c027a73e96863c2f78f2c2ff8ae9b0ceb844003b4639d0cb76795975db41ff
ripemd-160 09723da3a7b557e799740514ea4e4e03fff638e6

81497847 as geometric shapes

Circle

Radius = n
Diameter 162995694
Circumference 512066074.83717
Area 2.0866141310485E+16

Sphere

Radius = n
Volume 2.2673941226697E+24
Surface area 8.346456524194E+16
Circumference 512066074.83717

Square

Length = n
Perimeter 325991388
Area 6641899065635409
Diagonal 115255360.53161

Cube

Length = n
Surface area 39851394393812454
Volume 5.413004738406E+23
Space diagonal 141158411.71147

Equilateral Triangle

Length = n
Perimeter 244493541
Area 2.8760266601062E+15
Altitude 70579205.855737

Triangular Pyramid

Length = n
Surface area 2.8760266601062E+15
Volume 6.3792872618696E+22
Height 38418453.510536