81497688 (number)

81497688 is an even 8-digits composite number following 81497687 and preceding 81497689. In scientific notation, it is written as 8.1497688 × 10^7. The sum of its digits is 51. It has a total of 6 prime factors and 32 positive divisors. There are 25608960 positive integers (up to 81497688) that are relatively prime to 81497688.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1497688 × 10^7
Engineering notation 8.1497688 × 10^6

Prime Factorization of 81497688

Prime Factorization 2 × 2 × 2 × 57 × 571 × 313

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20374422
Product of the distinct prime numbers

The prime factorization of 81497688 is 2 × 2 × 2 × 57 × 571 × 313. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 9, 11, 68, 308, 124, 9173, 4421, 37806, 90534, 767696, 96858, 7641703, 853757, 41181572, 10438957, 727955225, 187822348, 9237433896, 3959963974

Basic calculations (n = 81497688)

Multiplication

n×y
n×2 162995376
n×3 244493064
n×4 325990752
n×5 407488440

Division

n÷y
n÷2 40748844
n÷3 27165896
n÷3 20374422
n÷5 16299537.6

Exponentiation

ny
n2 6641873149345344
n3 5.4129730566092E+23
n4 4.4114478931995E+31
n5 3.5952280402823E+39

Nth Root

y√n
2√n 9027.6069918888
3√n 433.5592231866
4√n 95.01372001921
5√n 38.214577086384

Divisors of 81497688

1, 2, 4, 8, 57, 114, 228, 313, 456, 571, 626, 1142, 1252, 2284, 2504, 4568, 17841, 32547, 35682, 65094, 71364, 130188, 142728, 178723, 260376, 357446, 714892, 1429784, 10187211, 20374422, 40748844, 81497688

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 -81497687
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 81497688 can be divided by 32 positive divisors. The sum of these divisors (counting 81497688) is 1, the average is 0.03125.

Base conversion 81497688

Base System Value
2 Binary 100110110111000111001011000
3 Ternary 12200100111210220
4 Quaternary 10312320321120
5 Quinary 131330411223
6 Senary 12030440040
8 Octal 466707130
10 Decimal 81497688
12 Duodecimal 23363020
16 Hexadecimal 4db8e58
20 Vigesimal 1597448
36 Base36 1cis0o

Cryptographic Hash Functions

md5 3f6f21ad8462ebf689d8cd537fcf17ce
sha1 7d4ea99814d508c2425d8ce2c17447e4387df918
sha256 94d867ce4f88579dd8428b3642b762d46bfa504bdaf8c3fc787e00a72e156c76
sha512 c7621be463504d7c7b74adbfe6744d75ccae4561a356b0c0287fecc671b19cb3ec4902414f199409d9e63e529b080f23b8a1383904e0e36af58f8814e17dc1aa
ripemd-160 3066f0d1244ae4014319226a56596edf071f7502

81497688 as geometric shapes

Circle

Radius = n
Diameter 162995376
Circumference 512065075.81071
Area 2.0866059892059E+16

Sphere

Radius = n
Volume 2.2673808518297E+24
Surface area 8.3464239568235E+16
Circumference 512065075.81071

Square

Length = n
Perimeter 325990752
Area 6641873149345344
Diagonal 115255135.67165

Cube

Length = n
Surface area 39851238896072064
Volume 5.4129730566092E+23
Space diagonal 141158136.3154

Equilateral Triangle

Length = n
Perimeter 244493064
Area 2.8760154380234E+15
Altitude 70579068.157698

Triangular Pyramid

Length = n
Surface area 2.8760154380234E+15
Volume 6.3792499245141E+22
Height 38418378.557217