81752649 (number)

81752649 is an odd 8-digits composite number following 81752648 and preceding 81752650. In scientific notation, it is written as 8.1752649 × 10^7. The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors. There are 44890560 positive integers (up to 81752649) that are relatively prime to 81752649.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred fifty-two thousand six hundred forty-nine

Notation

Scientific notation 8.1752649 × 10^7
Engineering notation 8.1752649 × 10^6

Prime Factorization of 81752649

Prime Factorization 11 × 57 × 23 × 5669

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81752649
Product of the distinct prime numbers

The prime factorization of 81752649 is 11 × 57 × 23 × 5669. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 9, 85, 73, 970, 945, 9944, 3512, 51104, 98245, 944694, 245234, 4272522, 5070787, 5480002, 24653941, 106380684, 223066071, 8178695455, 5869799382

Basic calculations (n = 81752649)

Multiplication

n×y
n×2 163505298
n×3 245257947
n×4 327010596
n×5 408763245

Division

n÷y
n÷2 40876324.5
n÷3 27250883
n÷3 20438162.25
n÷5 16350529.8

Exponentiation

ny
n2 6683495618517201
n3 5.4639347139367E+23
n4 4.4669113682739E+31
n5 3.651818372046E+39

Nth Root

y√n
2√n 9041.7171488606
3√n 434.01087452489
4√n 95.087944287699
5√n 38.238457658718

Divisors of 81752649

1, 11, 23, 57, 253, 627, 1311, 5669, 14421, 62359, 130387, 323133, 1434257, 3554463, 7432059, 81752649

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 -81752648
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 81752649 can be divided by 16 positive divisors. The sum of these divisors (counting 81752649) is 1, the average is 0.0625.

Base conversion 81752649

Base System Value
2 Binary 100110111110111001001001001
3 Ternary 12200211110112220
4 Quaternary 10313313021021
5 Quinary 131412041044
6 Senary 12040124253
8 Octal 467671111
10 Decimal 81752649
12 Duodecimal 23466689
16 Hexadecimal 4df7249
20 Vigesimal 15aj1c9
36 Base36 1co8qx

Cryptographic Hash Functions

md5 36bf90e7d07cfda226eaaa7048cf7d85
sha1 3a09d160815225a1b2f4ac51f4b668a8e5a2f456
sha256 d6ffc1e864c26d4753d560dba96377272474d0b3e6d9fc2c132aa449ddaad0b2
sha512 210a86153898ab260c90297b5a17bfd92fc46f0596c50878d27a5d1c4ebc45ed15870ca883f5ea87977dde5bbf256014efb8e027c1e0d4e7dfad94564f8e94b7
ripemd-160 c2ce1420e6a1826fe5b81e75743755f578c437eb

81752649 as geometric shapes

Circle

Radius = n
Diameter 163505298
Circumference 513667043.01981
Area 2.0996820735433E+16

Sphere

Radius = n
Volume 2.2887276209331E+24
Surface area 8.3987282941733E+16
Circumference 513667043.01981

Square

Length = n
Perimeter 327010596
Area 6683495618517201
Diagonal 115615704.97573

Cube

Length = n
Surface area 40100973711103206
Volume 5.4639347139367E+23
Space diagonal 141599741.72134

Equilateral Triangle

Length = n
Perimeter 245257947
Area 2.8940384958589E+15
Altitude 70799870.860672

Triangular Pyramid

Length = n
Surface area 2.8940384958589E+15
Volume 6.4393088136421E+22
Height 38538568.325242