81798889 (number)

81798889 is an odd 8-digits composite number following 81798888 and preceding 81798890. In scientific notation, it is written as 8.1798889 × 10^7. The sum of its digits is 58. It has a total of 2 prime factors and 4 positive divisors. There are 81174340 positive integers (up to 81798889) that are relatively prime to 81798889.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred ninety-eight thousand eight hundred eighty-nine

Notation

Scientific notation 8.1798889 × 10^7
Engineering notation 8.1798889 × 10^6

Prime Factorization of 81798889

Prime Factorization 131 × 624419

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 81798889
Product of the distinct prime numbers

The prime factorization of 81798889 is 131 × 624419. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81798889)

Multiplication

n×y
n×2 163597778
n×3 245396667
n×4 327195556
n×5 408994445

Division

n÷y
n÷2 40899444.5
n÷3 27266296.333333
n÷3 20449722.25
n÷5 16359777.8

Exponentiation

ny
n2 6691058241634321
n3 5.4732113039998E+23
n4 4.4770260392943E+31
n5 3.6621575603834E+39

Nth Root

y√n
2√n 9044.273823807
3√n 434.09268586109
4√n 95.101387076146
5√n 38.242782280386

Divisors of 81798889

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81798888
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81798889 can be divided by 4 positive divisors. The sum of these divisors (counting 81798889) is 1, the average is 0.25.

Base conversion 81798889

Base System Value
2 Binary 100111000000010011011101001
3 Ternary 12200220210222111
4 Quaternary 10320002123221
5 Quinary 131420031024
6 Senary 12041122321
8 Octal 470023351
10 Decimal 81798889
12 Duodecimal 234893a1
16 Hexadecimal 4e026e9
20 Vigesimal 15b4h49
36 Base36 1cp8fd

Cryptographic Hash Functions

md5 185c5e0e67f68200101adbf5f3118e94
sha1 270f4afe56910b73cf25e4cc889267b53db763fe
sha256 97f5377ace05acca7c257b8efd0a14d4c4d8f6e67711957e3dc1bae4faf0cb3d
sha512 83911df440d7b6abb8865862f7503e81c8941052c6f2bf62d71e6fab9782c68a8000d420e064a843caae5538e3cbff463678204b0be1899b43616cadacc25be8
ripemd-160 5720bc4b8a95051b77fcd64ba726d26a036b91d2

81798889 as geometric shapes

Circle

Radius = n
Diameter 163597778
Circumference 513957577.50841
Area 2.102057941666E+16

Sphere

Radius = n
Volume 2.2926133898921E+24
Surface area 8.4082317666639E+16
Circumference 513957577.50841

Square

Length = n
Perimeter 327195556
Area 6691058241634321
Diagonal 115681098.21085

Cube

Length = n
Surface area 40146349449805926
Volume 5.4732113039998E+23
Space diagonal 141679831.75069

Equilateral Triangle

Length = n
Perimeter 245396667
Area 2.8973132077283E+15
Altitude 70839915.875343

Triangular Pyramid

Length = n
Surface area 2.8973132077283E+15
Volume 6.4502413798752E+22
Height 38560366.070284