81542015 (number)

81542015 is an odd 8-digits composite number following 81542014 and preceding 81542016. In scientific notation, it is written as 8.1542015 × 10^7. The sum of its digits is 26. It has a total of 5 prime factors and 32 positive divisors. There are 58126464 positive integers (up to 81542015) that are relatively prime to 81542015.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1542015 × 10^7
Engineering notation 8.1542015 × 10^6

Prime Factorization of 81542015

Prime Factorization 5 × 19 × 23 × 67 × 557

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81542015
Product of the distinct prime numbers

The prime factorization of 81542015 is 5 × 19 × 23 × 67 × 557. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 2, 96, 44, 406, 172, 5609, 4501, 753, 25789, 282983, 647205, 1631707, 5876455, 23473295, 44709162, 768560478, 80851815, 3691552016, 4542582703

Basic calculations (n = 81542015)

Multiplication

n×y
n×2 163084030
n×3 244626045
n×4 326168060
n×5 407710075

Division

n÷y
n÷2 40771007.5
n÷3 27180671.666667
n÷3 20385503.75
n÷5 16308403

Exponentiation

ny
n2 6649100210260225
n3 5.4218102908154E+23
n4 4.4210533606083E+31
n5 3.6050159944652E+39

Nth Root

y√n
2√n 9030.0617384379
3√n 433.63781394947
4√n 95.026636994255
5√n 38.218733202181

Divisors of 81542015

1, 5, 19, 23, 67, 95, 115, 335, 437, 557, 1273, 1541, 2185, 2785, 6365, 7705, 10583, 12811, 29279, 37319, 52915, 64055, 146395, 186595, 243409, 709061, 858337, 1217045, 3545305, 4291685, 16308403, 81542015

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 -81542014
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 81542015 can be divided by 32 positive divisors. The sum of these divisors (counting 81542015) is 1, the average is 0.03125.

Base conversion 81542015

Base System Value
2 Binary 100110111000011101101111111
3 Ternary 12200102202121122
4 Quaternary 10313003231333
5 Quinary 131333321030
6 Senary 12031421155
8 Octal 467035577
10 Decimal 81542015
12 Duodecimal 233847bb
16 Hexadecimal 4dc3b7f
20 Vigesimal 159cf0f
36 Base36 1cjq7z

Cryptographic Hash Functions

md5 ea42d3a1c6d92ce8d81a12e70c782be8
sha1 816bd8ac8892d524397ac1484870305d70fc5578
sha256 29444ad8e3713cde83809af336736d2c548e8d752a187ae67d70294da9b1d2e8
sha512 d72092ed1c1c4abab6b9bfe6dfac97ac2662bacfd7d7c3f03a516160138b5abb03e4db064f631fa6ee25fa6c4cf56d4f5ce3b8a587600a5e9aee8f7c81efb398
ripemd-160 2785e038fe52ddda487d581b8e6696b3f4790063

81542015 as geometric shapes

Circle

Radius = n
Diameter 163084030
Circumference 512343590.56582
Area 2.0888764373536E+16

Sphere

Radius = n
Volume 2.2710825838378E+24
Surface area 8.3555057494143E+16
Circumference 512343590.56582

Square

Length = n
Perimeter 326168060
Area 6649100210260225
Diagonal 115317823.51623

Cube

Length = n
Surface area 39894601261561350
Volume 5.4218102908154E+23
Space diagonal 141234912.93154

Equilateral Triangle

Length = n
Perimeter 244626045
Area 2.8791448471969E+15
Altitude 70617456.465772

Triangular Pyramid

Length = n
Surface area 2.8791448471969E+15
Volume 6.3896647049043E+22
Height 38439274.50541