81329897 (number)

81329897 is an odd 8-digits composite number following 81329896 and preceding 81329898. In scientific notation, it is written as 8.1329897 × 10^7. The sum of its digits is 47. It has a total of 4 prime factors and 12 positive divisors. There are 72687600 positive integers (up to 81329897) that are relatively prime to 81329897.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred twenty-nine thousand eight hundred ninety-seven

Notation

Scientific notation 8.1329897 × 10^7
Engineering notation 8.1329897 × 10^6

Prime Factorization of 81329897

Prime Factorization 11 × 61 × 61 × 1987

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1333277
Product of the distinct prime numbers

The prime factorization of 81329897 is 11 × 61 × 61 × 1987. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 6, 88, 52, 238, 476, 588, 2272, 24410, 92945, 402190, 298944, 7728512, 9583620, 25114646, 13592042, 498281042, 5935867, 1768957059, 6744008652

Basic calculations (n = 81329897)

Multiplication

n×y
n×2 162659794
n×3 243989691
n×4 325319588
n×5 406649485

Division

n÷y
n÷2 40664948.5
n÷3 27109965.666667
n÷3 20332474.25
n÷5 16265979.4

Exponentiation

ny
n2 6614552146030609
n3 5.379608447378E+23
n4 4.3752300092558E+31
n5 3.5583700600408E+39

Nth Root

y√n
2√n 9018.3089878314
3√n 433.26147519842
4√n 94.964777616922
5√n 38.198828543408

Divisors of 81329897

1, 11, 61, 671, 1987, 3721, 21857, 40931, 121207, 1333277, 7393627, 81329897

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81329896
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81329897 can be divided by 12 positive divisors. The sum of these divisors (counting 81329897) is 1, the average is 0.083333333333333.

Base conversion 81329897

Base System Value
2 Binary 100110110001111111011101001
3 Ternary 12200000222122102
4 Quaternary 10312033323221
5 Quinary 131310024042
6 Senary 12023103145
8 Octal 466177351
10 Decimal 81329897
12 Duodecimal 232a1ab5
16 Hexadecimal 4d8fee9
20 Vigesimal 15864eh
36 Base36 1cf6jt

Cryptographic Hash Functions

md5 4f0f3d19a6137d9f6d76553b9e0479b3
sha1 73a9cfd0e82724e466d193d523e6775cfe30dad6
sha256 09309cafd8ff1cddd1bce93734576984c13d87200b9eae8a746712088da7a582
sha512 d0265bab72eb54652b7b68b6778f76c84f0170f6d562d2a7eb473817208c36fef5b1c990a0322c9442eff3053fc1570027e7c518b2055510e0e4575688b3deef
ripemd-160 4bbc14d26af10c97194c2d333a70b50367f3ece0

81329897 as geometric shapes

Circle

Radius = n
Diameter 162659794
Circumference 511010813.86483
Area 2.0780228428756E+16

Sphere

Radius = n
Volume 2.2534051169963E+24
Surface area 8.3120913715025E+16
Circumference 511010813.86483

Square

Length = n
Perimeter 325319588
Area 6614552146030609
Diagonal 115017843.36381

Cube

Length = n
Surface area 39687312876183654
Volume 5.379608447378E+23
Space diagonal 140867513.77834

Equilateral Triangle

Length = n
Perimeter 243989691
Area 2.8641850965597E+15
Altitude 70433756.889172

Triangular Pyramid

Length = n
Surface area 2.8641850965597E+15
Volume 6.339929355449E+22
Height 38339281.121269