81207315 (number)

81207315 is an odd 8-digits composite number following 81207314 and preceding 81207316. In scientific notation, it is written as 8.1207315 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 36590400 positive integers (up to 81207315) that are relatively prime to 81207315.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred seven thousand three hundred fifteen

Notation

Scientific notation 8.1207315 × 10^7
Engineering notation 8.1207315 × 10^6

Prime Factorization of 81207315

Prime Factorization 9 × 35 × 71 × 3631

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81207315
Product of the distinct prime numbers

The prime factorization of 81207315 is 9 × 35 × 71 × 3631. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 1, 71, 68, 421, 217, 8271, 8581, 93556, 43199, 638304, 599884, 5590145, 2027364, 68520975, 9894962, 9680126, 317516893, 7572851266, 7050022195

Basic calculations (n = 81207315)

Multiplication

n×y
n×2 162414630
n×3 243621945
n×4 324829260
n×5 406036575

Division

n÷y
n÷2 40603657.5
n÷3 27069105
n÷3 20301828.75
n÷5 16241463

Exponentiation

ny
n2 6594628009509225
n3 5.3553203407604E+23
n4 4.3489118583804E+31
n5 3.5316345519073E+39

Nth Root

y√n
2√n 9011.5101398156
3√n 433.04369237679
4√n 94.928974184996
5√n 38.187306791766

Divisors of 81207315

1, 9, 35, 71, 315, 639, 2485, 3631, 22365, 32679, 127085, 257801, 1143765, 2320209, 9023035, 81207315

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 -81207314
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 81207315 can be divided by 16 positive divisors. The sum of these divisors (counting 81207315) is 1, the average is 0.0625.

Base conversion 81207315

Base System Value
2 Binary 100110101110010000000010011
3 Ternary 12122210202111100
4 Quaternary 10311302000103
5 Quinary 131242113230
6 Senary 12020315443
8 Octal 465620023
10 Decimal 81207315
12 Duodecimal 23242b83
16 Hexadecimal 4d72013
20 Vigesimal 157ai5f
36 Base36 1ccjyr

Cryptographic Hash Functions

md5 e617764740da788b9a6b034771c7631a
sha1 f019c760ba5de957222f5607e51e2ccd618a4f92
sha256 dfae32ffa4c19f79e61425493cb6c96fb0bbfea326b6273f36a4e05e1a86ca1c
sha512 ae21c9c90e52dac837f62ed444c90e6bd964233dd9bac5943ce65d47289056aab4383e183499cf4cc43a3c509015dadcce53015d25592f4a03dbc4858842831a
ripemd-160 00c129951ac1d122298159c38c1393b8ae40889f

81207315 as geometric shapes

Circle

Radius = n
Diameter 162414630
Circumference 510240608.4435
Area 2.0717634907832E+16

Sphere

Radius = n
Volume 2.243231338687E+24
Surface area 8.2870539631327E+16
Circumference 510240608.4435

Square

Length = n
Perimeter 324829260
Area 6594628009509225
Diagonal 114844486.2369

Cube

Length = n
Surface area 39567768057055350
Volume 5.3553203407604E+23
Space diagonal 140655195.52625

Equilateral Triangle

Length = n
Perimeter 243621945
Area 2.8555576923717E+15
Altitude 70327597.763125

Triangular Pyramid

Length = n
Surface area 2.8555576923717E+15
Volume 6.3113055472965E+22
Height 38281495.412301