81472215 (number)

81472215 is an odd 8-digits composite number following 81472214 and preceding 81472216. In scientific notation, it is written as 8.1472215 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 38827520 positive integers (up to 81472215) that are relatively prime to 81472215.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred seventy-two thousand two hundred fifteen

Notation

Scientific notation 8.1472215 × 10^7
Engineering notation 8.1472215 × 10^6

Prime Factorization of 81472215

Prime Factorization 15 × 11 × 59 × 8369

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81472215
Product of the distinct prime numbers

The prime factorization of 81472215 is 15 × 11 × 59 × 8369. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 3, 38, 96, 88, 430, 8744, 1674, 71712, 81569, 576151, 844590, 1839359, 5018747, 90531075, 25079007, 137434298, 978603885, 1626974188, 1574120475

Basic calculations (n = 81472215)

Multiplication

n×y
n×2 162944430
n×3 244416645
n×4 325888860
n×5 407361075

Division

n÷y
n÷2 40736107.5
n÷3 27157405
n÷3 20368053.75
n÷5 16294443

Exponentiation

ny
n2 6637721817006225
n3 5.4078989898532E+23
n4 4.405935091996E+31
n5 3.5896129109115E+39

Nth Root

y√n
2√n 9026.1960426306
3√n 433.51404724272
4√n 95.006294752667
5√n 38.212187910268

Divisors of 81472215

1, 11, 15, 59, 165, 649, 885, 8369, 9735, 92059, 125535, 493771, 1380885, 5431481, 7406565, 81472215

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 -81472214
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 81472215 can be divided by 16 positive divisors. The sum of these divisors (counting 81472215) is 1, the average is 0.0625.

Base conversion 81472215

Base System Value
2 Binary 100110110110010101011010111
3 Ternary 12200022012212110
4 Quaternary 10312302223113
5 Quinary 131324102330
6 Senary 12030122103
8 Octal 466625327
10 Decimal 81472215
12 Duodecimal 23350333
16 Hexadecimal 4db2ad7
20 Vigesimal 15940af
36 Base36 1ci8d3

Cryptographic Hash Functions

md5 05a53bbcfb0734f7d69d707fcc619313
sha1 77829320ce706b2c19c46fae1e0c06729e232cb0
sha256 d6f911c06ecb1c105f41282fbe5a86e3c4aacde6ffc7ff3ab2520464051978f1
sha512 ae6bc9be425f724d262a7ff482649359eb7d2e8d9fd82ff501ca3213786375c45414d91301f226a2abd17fbe2a6185c9b3c2553d7cf2d16cf7fce5c1fe9145f9
ripemd-160 3e143cebc126dfc182144aac696bf7c093befb0d

81472215 as geometric shapes

Circle

Radius = n
Diameter 162944430
Circumference 511905024.23138
Area 2.0853018096879E+16

Sphere

Radius = n
Volume 2.2652554317171E+24
Surface area 8.3412072387518E+16
Circumference 511905024.23138

Square

Length = n
Perimeter 325888860
Area 6637721817006225
Diagonal 115219111.40958

Cube

Length = n
Surface area 39826330902037350
Volume 5.4078989898532E+23
Space diagonal 141114015.78518

Equilateral Triangle

Length = n
Perimeter 244416645
Area 2.8742178583908E+15
Altitude 70557007.892588

Triangular Pyramid

Length = n
Surface area 2.8742178583908E+15
Volume 6.3732700794952E+22
Height 38406370.469859