81298980 (number)

81298980 is an even 8-digits composite number following 81298979 and preceding 81298981. In scientific notation, it is written as 8.1298980 × 10^7. The sum of its digits is 45. It has a total of 6 prime factors and 48 positive divisors. There are 18385920 positive integers (up to 81298980) that are relatively prime to 81298980.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1298980 × 10^7
Engineering notation 8.1298980 × 10^6

Prime Factorization of 81298980

Prime Factorization 2 × 2 × 45 × 7 × 113 × 571

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40649490
Product of the distinct prime numbers

The prime factorization of 81298980 is 2 × 2 × 45 × 7 × 113 × 571. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81298980)

Multiplication

n×y
n×2 162597960
n×3 243896940
n×4 325195920
n×5 406494900

Division

n÷y
n÷2 40649490
n÷3 27099660
n÷3 20324745
n÷5 16259796

Exponentiation

ny
n2 6609524149040400
n3 5.3734757160235E+23
n4 4.3685809476748E+31
n5 3.551611750934E+39

Nth Root

y√n
2√n 9016.5947008835
3√n 433.20656778537
4√n 94.955751278601
5√n 38.195923897404

Divisors of 81298980

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81298979
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81298980 can be divided by 48 positive divisors. The sum of these divisors (counting 81298980) is 1, the average is 0.020833333333333.

Base conversion 81298980

Base System Value
2 Binary 100110110001000011000100100
3 Ternary 12122222102020100
4 Quaternary 10312020120210
5 Quinary 131303031410
6 Senary 12022304100
8 Octal 466103044
10 Decimal 81298980
12 Duodecimal 23288030
16 Hexadecimal 4d88624
20 Vigesimal 1582790
36 Base36 1ceip0

Cryptographic Hash Functions

md5 e0897a474c53cfeeb8fa67f29243b4b6
sha1 ca93c38c6e4a510cffd196f83b9d6b4688445e25
sha256 be03ece63ab1b3dc331a2f39e2f6aed68c8ff30af23d1386b87adc3f5ff1e08b
sha512 05ffe1fe67b9020a052f70b4935d61585818282d6be5d56ac332c2585f9939c1e17ec131c8a9ad866d4ba19ac46456e89057e42aee2b531e5121a76e6796551a
ripemd-160 356b4afeca423738f3a8862908e28e367fb6608f

81298980 as geometric shapes

Circle

Radius = n
Diameter 162597960
Circumference 510816556.62469
Area 2.076443251035E+16

Sphere

Radius = n
Volume 2.2508362444937E+24
Surface area 8.3057730041399E+16
Circumference 510816556.62469

Square

Length = n
Perimeter 325195920
Area 6609524149040400
Diagonal 114974120.1231

Cube

Length = n
Surface area 39657144894242400
Volume 5.3734757160235E+23
Space diagonal 140813963.96353

Equilateral Triangle

Length = n
Perimeter 243896940
Area 2.8620079099979E+15
Altitude 70406981.981763

Triangular Pyramid

Length = n
Surface area 2.8620079099979E+15
Volume 6.3327018622358E+22
Height 38324706.7077