81345793 (number)

81345793 is an odd 8-digits composite number following 81345792 and preceding 81345794. In scientific notation, it is written as 8.1345793 × 10^7. The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors. There are 81302868 positive integers (up to 81345793) that are relatively prime to 81345793.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred forty-five thousand seven hundred ninety-three

Notation

Scientific notation 8.1345793 × 10^7
Engineering notation 8.1345793 × 10^6

Prime Factorization of 81345793

Prime Factorization 1987 × 40939

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81345793
Product of the distinct prime numbers

The prime factorization of 81345793 is 1987 × 40939. Since it has a total of 2 prime factors.

Most popular turbo-numbers

1, 10, 61, 14, 726, 200, 6678, 5322, 49986, 85952, 398964, 343004, 6508553, 1721913, 98003466, 28436137, 367331142, 822438833, 2143577083, 1000977797

Basic calculations (n = 81345793)

Multiplication

n×y
n×2 162691586
n×3 244037379
n×4 325383172
n×5 406728965

Division

n÷y
n÷2 40672896.5
n÷3 27115264.333333
n÷3 20336448.25
n÷5 16269158.6

Exponentiation

ny
n2 6617138038798849
n3 5.3827634115656E+23
n4 4.3786515824519E+31
n5 3.5618488524525E+39

Nth Root

y√n
2√n 9019.1902629892
3√n 433.28970047192
4√n 94.969417514215
5√n 38.200321625619

Divisors of 81345793

1, 1987, 40939, 81345793

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81345792
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81345793 can be divided by 4 positive divisors. The sum of these divisors (counting 81345793) is 1, the average is 0.25.

Base conversion 81345793

Base System Value
2 Binary 100110110010011110100000001
3 Ternary 12200001210110011
4 Quaternary 10312103310001
5 Quinary 131311031133
6 Senary 12023304521
8 Octal 466236401
10 Decimal 81345793
12 Duodecimal 232ab141
16 Hexadecimal 4d93d01
20 Vigesimal 158849d
36 Base36 1cfitd

Cryptographic Hash Functions

md5 d9ef3767404d4f44408ce5f46b42092c
sha1 b70579f6174421e01e61f4001d15f62a2c4bee8c
sha256 2881d677d371b613c8926e349d1ff63b166f32b656813371a66aa7ca83d3cb0f
sha512 22aad74118172153cd6ffa9734e6a631609fdd057600cb88efa7138ffe873ca8e9c415fa25f10e4c22b0a087fd826773761289419a8b3ca7cbe9be9e56caf691
ripemd-160 cea357900fd69be0ce3beff7ffe27811d7868d95

81345793 as geometric shapes

Circle

Radius = n
Diameter 162691586
Circumference 511110691.37847
Area 2.078835225048E+16

Sphere

Radius = n
Volume 2.2547266653048E+24
Surface area 8.315340900192E+16
Circumference 511110691.37847

Square

Length = n
Perimeter 325383172
Area 6617138038798849
Diagonal 115040323.70259

Cube

Length = n
Surface area 39702828232793094
Volume 5.3827634115656E+23
Space diagonal 140895046.45798

Equilateral Triangle

Length = n
Perimeter 244037379
Area 2.8653048209741E+15
Altitude 70447523.22899

Triangular Pyramid

Length = n
Surface area 2.8653048209741E+15
Volume 6.3436475164014E+22
Height 38346774.567531