81359780 (number)

81359780 is an even 8-digits composite number following 81359779 and preceding 81359781. In scientific notation, it is written as 8.1359780 × 10^7. The sum of its digits is 41. It has a total of 5 prime factors and 24 positive divisors. There are 32244480 positive integers (up to 81359780) that are relatively prime to 81359780.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred fifty-nine thousand seven hundred eighty

Notation

Scientific notation 8.1359780 × 10^7
Engineering notation 8.1359780 × 10^6

Prime Factorization of 81359780

Prime Factorization 2 × 2 × 5 × 109 × 37321

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40679890
Product of the distinct prime numbers

The prime factorization of 81359780 is 2 × 2 × 5 × 109 × 37321. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 10, 47, 16, 643, 909, 742, 9552, 3728, 42917, 88948, 401554, 5558012, 1333574, 10310490, 34235360, 55877158, 738842064, 7288628212, 5304313279

Basic calculations (n = 81359780)

Multiplication

n×y
n×2 162719560
n×3 244079340
n×4 325439120
n×5 406798900

Division

n÷y
n÷2 40679890
n÷3 27119926.666667
n÷3 20339945
n÷5 16271956

Exponentiation

ny
n2 6619413801648400
n3 5.3855405063108E+23
n4 4.3816639077453E+31
n5 3.564912115681E+39

Nth Root

y√n
2√n 9019.9656318636
3√n 433.31453304366
4√n 94.973499629442
5√n 38.201635205914

Divisors of 81359780

1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 37321, 74642, 149284, 186605, 373210, 746420, 4067989, 8135978, 16271956, 20339945, 40679890, 81359780

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81359779
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81359780 can be divided by 24 positive divisors. The sum of these divisors (counting 81359780) is 1, the average is 0.041666666666667.

Base conversion 81359780

Base System Value
2 Binary 100110110010111001110100100
3 Ternary 12200002111122012
4 Quaternary 10312113032210
5 Quinary 131312003110
6 Senary 12023453352
8 Octal 466271644
10 Decimal 81359780
12 Duodecimal 232b7258
16 Hexadecimal 4d973a4
20 Vigesimal 1589j90
36 Base36 1cftlw

Cryptographic Hash Functions

md5 22f021195eca09599f7a91b69632cb84
sha1 167271295932d1afb80e2a3f0cf7b43ab83b9d91
sha256 ddc94e870588318d64e4077a528c6c1cc5eec416cc5cd0260af495406c5667ed
sha512 152c9705ea4583cc134d733edfa880c2ed64778f8dac6ea5834dc5dd82b852eb60e6592ddb471ed69e745b5d9124d022a68145169a29a441aed2388e86685773
ripemd-160 ddfbdd0e69e38f014194557cac84618345b879b6

81359780 as geometric shapes

Circle

Radius = n
Diameter 162719560
Circumference 511198574.29136
Area 2.0795501770329E+16

Sphere

Radius = n
Volume 2.2558899320315E+24
Surface area 8.3182007081318E+16
Circumference 511198574.29136

Square

Length = n
Perimeter 325439120
Area 6619413801648400
Diagonal 115060104.30769

Cube

Length = n
Surface area 39716482809890400
Volume 5.3855405063108E+23
Space diagonal 140919272.65263

Equilateral Triangle

Length = n
Perimeter 244079340
Area 2.8662902551944E+15
Altitude 70459636.326313

Triangular Pyramid

Length = n
Surface area 2.8662902551944E+15
Volume 6.3469203539453E+22
Height 38353368.102564