81508770 (number)

81508770 is an even 8-digits composite number following 81508769 and preceding 81508771. In scientific notation, it is written as 8.1508770 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors. There are 18630432 positive integers (up to 81508770) that are relatively prime to 81508770.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1508770 × 10^7
Engineering notation 8.1508770 × 10^6

Prime Factorization of 81508770

Prime Factorization 2 × 45 × 7 × 129379

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81508770
Product of the distinct prime numbers

The prime factorization of 81508770 is 2 × 45 × 7 × 129379. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 10, 83, 15, 119, 951, 2526, 3086, 43729, 31165, 683624, 521314, 2182163, 5553578, 67279165, 40937865, 785911732, 718620339, 5317550385, 9585605205

Basic calculations (n = 81508770)

Multiplication

n×y
n×2 163017540
n×3 244526310
n×4 326035080
n×5 407543850

Division

n÷y
n÷2 40754385
n÷3 27169590
n÷3 20377192.5
n÷5 16301754

Exponentiation

ny
n2 6643679586912900
n3 5.4151815140338E+23
n4 4.4138478453563E+31
n5 3.5976730884214E+39

Nth Root

y√n
2√n 9028.2207549439
3√n 433.5788739917
4√n 95.016949829722
5√n 38.215616308284

Divisors of 81508770

1, 2, 7, 14, 45, 90, 315, 630, 129379, 258758, 905653, 1811306, 5822055, 11644110, 40754385, 81508770

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 -81508769
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 81508770 can be divided by 16 positive divisors. The sum of these divisors (counting 81508770) is 1, the average is 0.0625.

Base conversion 81508770

Base System Value
2 Binary 100110110111011100110100010
3 Ternary 12200101002000100
4 Quaternary 10312323212202
5 Quinary 131331240040
6 Senary 12031003230
8 Octal 466734642
10 Decimal 81508770
12 Duodecimal 23369516
16 Hexadecimal 4dbb9a2
20 Vigesimal 1598bia
36 Base36 1cj0ki

Cryptographic Hash Functions

md5 75307cbf1b4591129aa76504e22fd659
sha1 ebc3e8482a393dfa6812dd1341bea5caa1b7a2a0
sha256 14b2ce3874db7a4c100126afdade7adf7c3a1cb13d321424f79a4758e3d029eb
sha512 623b703faec323856dd221817bd343192290c747a8c4fc7c7b86af263d28b0b1e59a3f1679036806cf702eaf8070fb931dd328b6f09022abb058c38496089f8d
ripemd-160 f754bed8c174dbd376ef35db5c7a7ba6b216a3c8

81508770 as geometric shapes

Circle

Radius = n
Diameter 163017540
Circumference 512134706.07028
Area 2.087173498305E+16

Sphere

Radius = n
Volume 2.2683059283125E+24
Surface area 8.34869399322E+16
Circumference 512134706.07028

Square

Length = n
Perimeter 326035080
Area 6643679586912900
Diagonal 115270807.98635

Cube

Length = n
Surface area 39862077521477400
Volume 5.4151815140338E+23
Space diagonal 141177330.90245

Equilateral Triangle

Length = n
Perimeter 244526310
Area 2.8767976484353E+15
Altitude 70588665.451223

Triangular Pyramid

Length = n
Surface area 2.8767976484353E+15
Volume 6.3818526165489E+22
Height 38423602.662116