81049907 (number)

81049907 is an odd 8-digits composite number following 81049906 and preceding 81049908. In scientific notation, it is written as 8.1049907 × 10^7. The sum of its digits is 38. It has a total of 4 prime factors and 16 positive divisors. There are 74342400 positive integers (up to 81049907) that are relatively prime to 81049907.

Interesting facts

Basic properties

Name

Name eighty-one million forty-nine thousand nine hundred seven

Notation

Scientific notation 8.1049907 × 10^7
Engineering notation 8.1049907 × 10^6

Prime Factorization of 81049907

Prime Factorization 61 × 23 × 41 × 1409

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81049907
Product of the distinct prime numbers

The prime factorization of 81049907 is 61 × 23 × 41 × 1409. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 9, 14, 12, 657, 167, 7956, 1741, 78164, 3696, 586567, 584734, 4757856, 6751955, 62018657, 90628286, 109803040, 548881924, 9921295450, 5486548164

Basic calculations (n = 81049907)

Multiplication

n×y
n×2 162099814
n×3 243149721
n×4 324199628
n×5 405249535

Division

n÷y
n÷2 40524953.5
n÷3 27016635.666667
n÷3 20262476.75
n÷5 16209981.4

Exponentiation

ny
n2 6569087424708649
n3 5.3242392484751E+23
n4 4.3152909593465E+31
n5 3.4975393093298E+39

Nth Root

y√n
2√n 9002.7721841664
3√n 432.76371500772
4√n 94.882939373559
5√n 38.172491245732

Divisors of 81049907

1, 23, 41, 61, 943, 1403, 1409, 2501, 32407, 57523, 57769, 85949, 1328687, 1976827, 3523909, 81049907

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 -81049906
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 81049907 can be divided by 16 positive divisors. The sum of these divisors (counting 81049907) is 1, the average is 0.0625.

Base conversion 81049907

Base System Value
2 Binary 100110101001011100100110011
3 Ternary 12122111202120102
4 Quaternary 10311023210303
5 Quinary 131222044112
6 Senary 12013103015
8 Octal 465134463
10 Decimal 81049907
12 Duodecimal 23187a6b
16 Hexadecimal 4d4b933
20 Vigesimal 156b4f7
36 Base36 1c96ib

Cryptographic Hash Functions

md5 8ed8dcad6773b250bf62839ca7803c0f
sha1 02557013eab283f83605948e689b3a51f084a10e
sha256 dd506603ae39f5960837422cc0dd8ed8d6b2fa581556dc7fd8f783317eefe2f7
sha512 d6a3205836038470d3d15d0e0c46b25ec0d0f0d34a04865f80872ca02a438a08ea38dd9f5e8d15f1bc0651fb03083593770cfd396f6bc4281cc823c295406439
ripemd-160 e6ed056a58b3f1cdeb72a3fb1647ca2200ce6140

81049907 as geometric shapes

Circle

Radius = n
Diameter 162099814
Circumference 509251584.81067
Area 2.0637396794254E+16

Sphere

Radius = n
Volume 2.2302121211952E+24
Surface area 8.2549587177015E+16
Circumference 509251584.81067

Square

Length = n
Perimeter 324199628
Area 6569087424708649
Diagonal 114621877.70848

Cube

Length = n
Surface area 39414524548251894
Volume 5.3242392484751E+23
Space diagonal 140382556.87273

Equilateral Triangle

Length = n
Perimeter 243149721
Area 2.8444982947393E+15
Altitude 70191278.436366

Triangular Pyramid

Length = n
Surface area 2.8444982947393E+15
Volume 6.2746761287605E+22
Height 38207292.569493