81837480 (number)

81837480 is an even 8-digits composite number following 81837479 and preceding 81837481. In scientific notation, it is written as 8.1837480 × 10^7. The sum of its digits is 39. It has a total of 6 prime factors and 32 positive divisors. There are 21823296 positive integers (up to 81837480) that are relatively prime to 81837480.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred thirty-seven thousand four hundred eighty

Notation

Scientific notation 8.1837480 × 10^7
Engineering notation 8.1837480 × 10^6

Prime Factorization of 81837480

Prime Factorization 2 × 2 × 2 × 5 × 3 × 681979

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20459370
Product of the distinct prime numbers

The prime factorization of 81837480 is 2 × 2 × 2 × 5 × 3 × 681979. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 5, 16, 80, 738, 405, 2204, 2309, 23263, 52376, 723137, 379842, 123692, 1283677, 45702411, 6414457, 851904151, 87772152, 9338732034, 3246683417

Basic calculations (n = 81837480)

Multiplication

n×y
n×2 163674960
n×3 245512440
n×4 327349920
n×5 409187400

Division

n÷y
n÷2 40918740
n÷3 27279160
n÷3 20459370
n÷5 16367496

Exponentiation

ny
n2 6697373132750400
n3 5.48096139804E+23
n4 4.4854806879287E+31
n5 3.6708043608875E+39

Nth Root

y√n
2√n 9046.4070215749
3√n 434.16094040305
4√n 95.112601802153
5√n 38.246390028125

Divisors of 81837480

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 681979, 1363958, 2045937, 2727916, 3409895, 4091874, 5455832, 6819790, 8183748, 10229685, 13639580, 16367496, 20459370, 27279160, 40918740, 81837480

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81837479
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81837480 can be divided by 32 positive divisors. The sum of these divisors (counting 81837480) is 1, the average is 0.03125.

Base conversion 81837480

Base System Value
2 Binary 100111000001011110110101000
3 Ternary 12200222202220210
4 Quaternary 10320023312220
5 Quinary 131422244410
6 Senary 12042021120
8 Octal 470136650
10 Decimal 81837480
12 Duodecimal 234a77a0
16 Hexadecimal 4e0bda8
20 Vigesimal 15b9de0
36 Base36 1cq27c

Cryptographic Hash Functions

md5 d4a066a151f2b96a3fd735069f49a63e
sha1 cc9e6afb9a569a4c78f2f32ae64a951a3d8f87e4
sha256 ef2a03608e01da80505caa900ed143cbbfe07cb7c83a552274bc71d95cb76c7c
sha512 950a8e851bd807ffca7315635ca21ba49ab656f8f2448223b4256157543cbfaa38484444167a99625f89918cc2e7260a801ce358b8bc1c49dcdbee9252842b1d
ripemd-160 972d87841a7feda39f82f50b9846b9fa7bfa0fc6

81837480 as geometric shapes

Circle

Radius = n
Diameter 163674960
Circumference 514200051.9126
Area 2.1040418232198E+16

Sphere

Radius = n
Volume 2.2958597416922E+24
Surface area 8.4161672928793E+16
Circumference 514200051.9126

Square

Length = n
Perimeter 327349920
Area 6697373132750400
Diagonal 115735674.12644

Cube

Length = n
Surface area 40184238796502400
Volume 5.48096139804E+23
Space diagonal 141746673.3234

Equilateral Triangle

Length = n
Perimeter 245512440
Area 2.9000476357926E+15
Altitude 70873336.661701

Triangular Pyramid

Length = n
Surface area 2.9000476357926E+15
Volume 6.459374953293E+22
Height 38578558.042146