81409964 (number)

81409964 is an even 8-digits composite number following 81409963 and preceding 81409965. In scientific notation, it is written as 8.1409964 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 12 positive divisors. There are 40309584 positive integers (up to 81409964) that are relatively prime to 81409964.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred nine thousand nine hundred sixty-four

Notation

Scientific notation 8.1409964 × 10^7
Engineering notation 8.1409964 × 10^6

Prime Factorization of 81409964

Prime Factorization 2 × 2 × 103 × 197597

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40704982
Product of the distinct prime numbers

The prime factorization of 81409964 is 2 × 2 × 103 × 197597. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 4, 5, 18, 630, 525, 8294, 9306, 81194, 88910, 430481, 919921, 4167311, 9237278, 76737841, 31035412, 70286033, 30132129, 5433314929, 5893990109

Basic calculations (n = 81409964)

Multiplication

n×y
n×2 162819928
n×3 244229892
n×4 325639856
n×5 407049820

Division

n÷y
n÷2 40704982
n÷3 27136654.666667
n÷3 20352491
n÷5 16281992.8

Exponentiation

ny
n2 6627582238481296
n3 5.395512314418E+23
n4 4.3924846327833E+31
n5 3.5759201582544E+39

Nth Root

y√n
2√n 9022.747031808
3√n 433.40360648624
4√n 94.988141532551
5√n 38.206346718247

Divisors of 81409964

1, 2, 4, 103, 206, 412, 197597, 395194, 790388, 20352491, 40704982, 81409964

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 -81409963
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 81409964 can be divided by 12 positive divisors. The sum of these divisors (counting 81409964) is 1, the average is 0.083333333333333.

Base conversion 81409964

Base System Value
2 Binary 100110110100011011110101100
3 Ternary 12200012001110212
4 Quaternary 10312203132230
5 Quinary 131320104324
6 Senary 12024521552
8 Octal 466433654
10 Decimal 81409964
12 Duodecimal 233202b8
16 Hexadecimal 4da37ac
20 Vigesimal 158g4i4
36 Base36 1cgwbw

Cryptographic Hash Functions

md5 df49179474241e74a815626c5111b2b3
sha1 a32fce82cd319f941e9f74ede8b125a407762a46
sha256 03ab809c369556426dbbdb11c266e699858a90f31049bcfdd5aa771a04f4094d
sha512 e7df2266e138d03989d869accc6437220a802a1e0eea7f61bab712eff21a197aa63e22bf80d41a1b1c5ae1cd7407f390735483f199cb4a420908e054164c0ebc
ripemd-160 91d341737764facd9440e588bdb1d3e3f7332586

81409964 as geometric shapes

Circle

Radius = n
Diameter 162819928
Circumference 511513889.66282
Area 2.0821163671475E+16

Sphere

Radius = n
Volume 2.2600669132439E+24
Surface area 8.32846546859E+16
Circumference 511513889.66282

Square

Length = n
Perimeter 325639856
Area 6627582238481296
Diagonal 115131075.20111

Cube

Length = n
Surface area 39765493430887776
Volume 5.395512314418E+23
Space diagonal 141006193.89035

Equilateral Triangle

Length = n
Perimeter 244229892
Area 2.8698272920977E+15
Altitude 70503096.945177

Triangular Pyramid

Length = n
Surface area 2.8698272920977E+15
Volume 6.3586722425008E+22
Height 38377025.067035