81497647 (number)

81497647 is an odd 8-digits composite number following 81497646 and preceding 81497648. In scientific notation, it is written as 8.1497647 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors. There are 62460000 positive integers (up to 81497647) that are relatively prime to 81497647.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1497647 × 10^7
Engineering notation 8.1497647 × 10^6

Prime Factorization of 81497647

Prime Factorization 7 × 11 × 61 × 17351

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81497647
Product of the distinct prime numbers

The prime factorization of 81497647 is 7 × 11 × 61 × 17351. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 5, 17, 56, 48, 394, 6642, 5184, 46094, 26594, 40228, 835932, 6182229, 4158650, 35076891, 11378234, 249041972, 13322270, 9218402626, 4405787309

Basic calculations (n = 81497647)

Multiplication

n×y
n×2 162995294
n×3 244492941
n×4 325990588
n×5 407488235

Division

n÷y
n÷2 40748823.5
n÷3 27165882.333333
n÷3 20374411.75
n÷5 16299529.4

Exponentiation

ny
n2 6641866466536609
n3 5.4129648871094E+23
n4 4.4114390159303E+31
n5 3.5952189968232E+39

Nth Root

y√n
2√n 9027.6047210763
3√n 433.55915048135
4√n 95.01370806929
5√n 38.214573241372

Divisors of 81497647

1, 7, 11, 61, 77, 427, 671, 4697, 17351, 121457, 190861, 1058411, 1336027, 7408877, 11642521, 81497647

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 -81497646
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 81497647 can be divided by 16 positive divisors. The sum of these divisors (counting 81497647) is 1, the average is 0.0625.

Base conversion 81497647

Base System Value
2 Binary 100110110111000111000101111
3 Ternary 12200100111202101
4 Quaternary 10312320320233
5 Quinary 131330411042
6 Senary 12030435531
8 Octal 466707057
10 Decimal 81497647
12 Duodecimal 23362ba7
16 Hexadecimal 4db8e2f
20 Vigesimal 1597427
36 Base36 1cirzj

Cryptographic Hash Functions

md5 1d91ff26b95398819bcba9c6ec290a35
sha1 ba2b778e8185e6a0c5efa832dbf3832cd2e23262
sha256 fbac1b29321c13a620671509faedb90339b2a7d1a8526d3ce73ce4c613459148
sha512 93c98a23fba9d3b1bcfa7a3e41189efc6195613912a5fce069a32a29a325af3576067e09bae0cc10088406855019f54dc0ce5e909ab37a9ecd3bdb11c08d78a4
ripemd-160 b73c537333599e0808e551905e4e8ba6fba8f4af

81497647 as geometric shapes

Circle

Radius = n
Diameter 162995294
Circumference 512064818.20011
Area 2.0866038897396E+16

Sphere

Radius = n
Volume 2.2673774297976E+24
Surface area 8.3464155589583E+16
Circumference 512064818.20011

Square

Length = n
Perimeter 325990588
Area 6641866466536609
Diagonal 115255077.68889

Cube

Length = n
Surface area 39851198799219654
Volume 5.4129648871094E+23
Space diagonal 141158065.30131

Equilateral Triangle

Length = n
Perimeter 244492941
Area 2.8760125442823E+15
Altitude 70579032.650657

Triangular Pyramid

Length = n
Surface area 2.8760125442823E+15
Volume 6.3792402966662E+22
Height 38418359.229632