81679997 (number)

81679997 is an odd 8-digits composite number following 81679996 and preceding 81679998. In scientific notation, it is written as 8.1679997 × 10^7. The sum of its digits is 56. It has a total of 3 prime factors and 8 positive divisors. There are 69737472 positive integers (up to 81679997) that are relatively prime to 81679997.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred seventy-nine thousand nine hundred ninety-seven

Notation

Scientific notation 8.1679997 × 10^7
Engineering notation 8.1679997 × 10^6

Prime Factorization of 81679997

Prime Factorization 7 × 257 × 45403

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81679997
Product of the distinct prime numbers

The prime factorization of 81679997 is 7 × 257 × 45403. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81679997)

Multiplication

n×y
n×2 163359994
n×3 245039991
n×4 326719988
n×5 408399985

Division

n÷y
n÷2 40839998.5
n÷3 27226665.666667
n÷3 20419999.25
n÷5 16335999.4

Exponentiation

ny
n2 6671621909920009
n3 5.449380575874E+23
n4 4.4510538908925E+31
n5 3.6356206845494E+39

Nth Root

y√n
2√n 9037.6986561845
3√n 433.8822707279
4√n 95.066811538962
5√n 38.231658885775

Divisors of 81679997

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81679996
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81679997 can be divided by 8 positive divisors. The sum of these divisors (counting 81679997) is 1, the average is 0.125.

Base conversion 81679997

Base System Value
2 Binary 100110111100101011001111101
3 Ternary 12200200202220002
4 Quaternary 10313211121331
5 Quinary 131402224442
6 Senary 12034404045
8 Octal 467453175
10 Decimal 81679997
12 Duodecimal 23430625
16 Hexadecimal 4de567d
20 Vigesimal 15a9jjh
36 Base36 1cmoot

Cryptographic Hash Functions

md5 f27139c00b5e237ccef7a13acf1ceab9
sha1 a427c75d284d6c4849bae5a05345d025a3f2dfe1
sha256 0573f73f075c86291a3e7e83ba2e4c284adeeeef400eacba1c311f9e51d0662f
sha512 3b0de75e07540dba575df3bdb631cb7bbaa4b9579662edc0b4fa819b88cb9732cd58aa4082e3573b04b2861ed5a438cc0cdca63b9c7653a5dc651c34cc1b19ce
ripemd-160 1d11a17a36e3fb3160bb0edcc3f86fbd933f7f96

81679997 as geometric shapes

Circle

Radius = n
Diameter 163359994
Circumference 513210557.04087
Area 2.0959518379733E+16

Sphere

Radius = n
Volume 2.2826311978374E+24
Surface area 8.3838073518934E+16
Circumference 513210557.04087

Square

Length = n
Perimeter 326719988
Area 6671621909920009
Diagonal 115512959.53199

Cube

Length = n
Surface area 40029731459520054
Volume 5.449380575874E+23
Space diagonal 141473904.76607

Equilateral Triangle

Length = n
Perimeter 245039991
Area 2.8888970292178E+15
Altitude 70736952.383037

Triangular Pyramid

Length = n
Surface area 2.8888970292178E+15
Volume 6.4221565974446E+22
Height 38504319.843998