81768765 (number)

81768765 is an odd 8-digits composite number following 81768764 and preceding 81768766. In scientific notation, it is written as 8.1768765 × 10^7. The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors. There are 39974400 positive integers (up to 81768765) that are relatively prime to 81768765.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred sixty-eight thousand seven hundred sixty-five

Notation

Scientific notation 8.1768765 × 10^7
Engineering notation 8.1768765 × 10^6

Prime Factorization of 81768765

Prime Factorization 15 × 13 × 151 × 2777

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81768765
Product of the distinct prime numbers

The prime factorization of 81768765 is 15 × 13 × 151 × 2777. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 5, 96, 30, 91, 900, 973, 8228, 25044, 99905, 378008, 304250, 2858741, 8095273, 79125020, 85578965, 293287868, 303043230, 1243957973, 9735164313

Basic calculations (n = 81768765)

Multiplication

n×y
n×2 163537530
n×3 245306295
n×4 327075060
n×5 408843825

Division

n÷y
n÷2 40884382.5
n÷3 27256255
n÷3 20442191.25
n÷5 16353753

Exponentiation

ny
n2 6686130929625225
n3 5.4671666874376E+23
n4 4.4704346808091E+31
n5 3.6554192286293E+39

Nth Root

y√n
2√n 9042.6083073414
3√n 434.03939168316
4√n 95.092630142096
5√n 38.239965138669

Divisors of 81768765

1, 13, 15, 151, 195, 1963, 2265, 2777, 29445, 36101, 41655, 419327, 541515, 5451251, 6289905, 81768765

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 -81768764
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 81768765 can be divided by 16 positive divisors. The sum of these divisors (counting 81768765) is 1, the average is 0.0625.

Base conversion 81768765

Base System Value
2 Binary 100110111111011000100111101
3 Ternary 12200212021122210
4 Quaternary 10313323010331
5 Quinary 131413100030
6 Senary 12040331033
8 Octal 467730475
10 Decimal 81768765
12 Duodecimal 23473a79
16 Hexadecimal 4dfb13d
20 Vigesimal 15b11i5
36 Base36 1col6l

Cryptographic Hash Functions

md5 b3e43d680fa8e5c3b907e726a9057aaa
sha1 a5772575fa1cd86e56881474e36fcaa32f3dc30a
sha256 b19af7e40a49adf0570e59996bfd6cfa1128c09c1ba2933ef5e08ca28d106929
sha512 d9171d611ff344f4f053b1c331a1d960bcf5e678c796458d3f8889a4c668923b89e1757d03a69525ca7effa45c7bc258f7d22255dd10fc9ffec26dc24026f2be
ripemd-160 f38f3bd6cbc396a750d4939bcd50b4ca72b47334

81768765 as geometric shapes

Circle

Radius = n
Diameter 163537530
Circumference 513768302.83422
Area 2.100509980945E+16

Sphere

Radius = n
Volume 2.2900814268273E+24
Surface area 8.40203992378E+16
Circumference 513768302.83422

Square

Length = n
Perimeter 327075060
Area 6686130929625225
Diagonal 115638496.4415

Cube

Length = n
Surface area 40116785577751350
Volume 5.4671666874376E+23
Space diagonal 141627655.45216

Equilateral Triangle

Length = n
Perimeter 245306295
Area 2.8951796190422E+15
Altitude 70813827.72608

Triangular Pyramid

Length = n
Surface area 2.8951796190422E+15
Volume 6.4431177309405E+22
Height 38546165.480499