81282015 (number)

81282015 is an odd 8-digits composite number following 81282014 and preceding 81282016. In scientific notation, it is written as 8.1282015 × 10^7. The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors. There are 40296960 positive integers (up to 81282015) that are relatively prime to 81282015.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1282015 × 10^7
Engineering notation 8.1282015 × 10^6

Prime Factorization of 81282015

Prime Factorization 27 × 5 × 17 × 107 × 331

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81282015
Product of the distinct prime numbers

The prime factorization of 81282015 is 27 × 5 × 17 × 107 × 331. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 2, 31, 97, 980, 986, 7552, 1007, 72100, 57738, 267354, 966223, 9622177, 3939210, 14974079, 90427227, 989689931, 890463347, 8641434610, 6117670322

Basic calculations (n = 81282015)

Multiplication

n×y
n×2 162564030
n×3 243846045
n×4 325128060
n×5 406410075

Division

n÷y
n÷2 40641007.5
n÷3 27094005
n÷3 20320503.75
n÷5 16256403

Exponentiation

ny
n2 6606765962460225
n3 5.3701125006218E+23
n4 4.3649356482723E+31
n5 3.547907648369E+39

Nth Root

y√n
2√n 9015.6538864355
3√n 433.17643267712
4√n 94.950797186941
5√n 38.194329663519

Divisors of 81282015

1, 5, 17, 27, 85, 107, 135, 331, 459, 535, 1655, 1819, 2295, 2889, 5627, 8937, 9095, 14445, 28135, 35417, 44685, 49113, 151929, 177085, 245565, 602089, 759645, 956259, 3010445, 4781295, 16256403, 81282015

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81282014
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81282015 can be divided by 32 positive divisors. The sum of these divisors (counting 81282015) is 1, the average is 0.03125.

Base conversion 81282015

Base System Value
2 Binary 100110110000100001111011111
3 Ternary 12122221112222000
4 Quaternary 10312010033133
5 Quinary 131302011030
6 Senary 12022053343
8 Octal 466041737
10 Decimal 81282015
12 Duodecimal 2327a253
16 Hexadecimal 4d843df
20 Vigesimal 158050f
36 Base36 1ce5lr

Cryptographic Hash Functions

md5 6aa16087fd7b876be6273aa478ad0ae2
sha1 ad6b8b05bcfd9ae1c42cec1b01c2067cfe0dccba
sha256 7cb09b8f27343d74e889eb8f5434d6c514bf630c17106c80230b811e64fdde0d
sha512 2070ef709d609f102b11c9b741f37d0869dd7ca93c05d24af3572c74f8529b3677794216899c5b0eb59f242f57a4054e45afdcbb9efb04bc1e2bf1b381a70d10
ripemd-160 26eab72b215da1a8bcd3c8e54cbf714ef61cbc4a

81282015 as geometric shapes

Circle

Radius = n
Diameter 162564030
Circumference 510709962.38595
Area 2.0755767411652E+16

Sphere

Radius = n
Volume 2.2494274641206E+24
Surface area 8.3023069646609E+16
Circumference 510709962.38595

Square

Length = n
Perimeter 325128060
Area 6606765962460225
Diagonal 114950127.99001

Cube

Length = n
Surface area 39640595774761350
Volume 5.3701125006218E+23
Space diagonal 140784579.72158

Equilateral Triangle

Length = n
Perimeter 243846045
Area 2.8608135801745E+15
Altitude 70392289.860788

Triangular Pyramid

Length = n
Surface area 2.8608135801745E+15
Volume 6.3287382748739E+22
Height 38316709.330004