81081497 (number)

81081497 is an odd 8-digits composite number following 81081496 and preceding 81081498. In scientific notation, it is written as 8.1081497 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 68115600 positive integers (up to 81081497) that are relatively prime to 81081497.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1081497 × 10^7
Engineering notation 8.1081497 × 10^6

Prime Factorization of 81081497

Prime Factorization 7 × 103 × 107 × 1051

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81081497
Product of the distinct prime numbers

The prime factorization of 81081497 is 7 × 103 × 107 × 1051. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 8, 83, 96, 209, 78, 7860, 1637, 53598, 55732, 40416, 911780, 8240165, 9052994, 12198883, 19666419, 830102444, 263570816, 7247574977, 474093188

Basic calculations (n = 81081497)

Multiplication

n×y
n×2 162162994
n×3 243244491
n×4 324325988
n×5 405407485

Division

n÷y
n÷2 40540748.5
n÷3 27027165.666667
n÷3 20270374.25
n÷5 16216299.4

Exponentiation

ny
n2 6574209155761009
n3 5.3304671994021E+23
n4 4.3220226023692E+31
n5 3.5043606266793E+39

Nth Root

y√n
2√n 9004.5264728358
3√n 432.81993234553
4√n 94.892183412733
5√n 38.17546640286

Divisors of 81081497

1, 7, 103, 107, 721, 749, 1051, 7357, 11021, 77147, 108253, 112457, 757771, 787199, 11583071, 81081497

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 -81081496
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 81081497 can be divided by 16 positive divisors. The sum of these divisors (counting 81081497) is 1, the average is 0.0625.

Base conversion 81081497

Base System Value
2 Binary 100110101010011010010011001
3 Ternary 12122120100220102
4 Quaternary 10311103102121
5 Quinary 131224101442
6 Senary 12013505145
8 Octal 465232231
10 Decimal 81081497
12 Duodecimal 231a21b5
16 Hexadecimal 4d53499
20 Vigesimal 156f3eh
36 Base36 1c9uvt

Cryptographic Hash Functions

md5 de9bb99b7e0f645fbd5251c7b482be91
sha1 cf75f014aea299ed20169f4376ecc1e03bb4961f
sha256 2b5d7205771a8aab988d7b10aee895b99ca143952c5e02c512141bfe7898ccd8
sha512 0a2ad6350b1f96beed05325fc69f3ad584ec56cdd2d78da0034a5042c8e5aaae083ebd583a98edf44a21672c854c65ecc9d96ce06a0d82cc5be56858236c68cd
ripemd-160 9c29af449a04a26ab4b520318a5cdead986fe56d

81081497 as geometric shapes

Circle

Radius = n
Diameter 162162994
Circumference 509450070.63453
Area 2.0653487186902E+16

Sphere

Radius = n
Volume 2.2328208791791E+24
Surface area 8.2613948747606E+16
Circumference 509450070.63453

Square

Length = n
Perimeter 324325988
Area 6574209155761009
Diagonal 114666552.71491

Cube

Length = n
Surface area 39445254934566054
Volume 5.3304671994021E+23
Space diagonal 140437272.35774

Equilateral Triangle

Length = n
Perimeter 243244491
Area 2.8467160693406E+15
Altitude 70218636.178872

Triangular Pyramid

Length = n
Surface area 2.8467160693406E+15
Volume 6.2820158393161E+22
Height 38222184.238304