81998082 (number)

81998082 is an even 8-digits composite number following 81998081 and preceding 81998083. In scientific notation, it is written as 8.1998082 × 10^7. The sum of its digits is 45. It has a total of 7 prime factors and 80 positive divisors. There are 25632288 positive integers (up to 81998082) that are relatively prime to 81998082.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1998082 × 10^7
Engineering notation 8.1998082 × 10^6

Prime Factorization of 81998082

Prime Factorization 2 × 9 × 3 × 3 × 59 × 23 × 373

Composite number
ω Distinct Factors 6
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 27332694
Product of the distinct prime numbers

The prime factorization of 81998082 is 2 × 9 × 3 × 3 × 59 × 23 × 373. Since it has a total of 7 prime factors.

Most popular turbo-numbers

8, 2, 69, 87, 208, 882, 7877, 4298, 23230, 92058, 10410, 84158, 5110209, 8993635, 52155322, 60375084, 125532838, 663312327, 9861539492, 4245340563

Basic calculations (n = 81998082)

Multiplication

n×y
n×2 163996164
n×3 245994246
n×4 327992328
n×5 409990410

Division

n÷y
n÷2 40999041
n÷3 27332694
n÷3 20499520.5
n÷5 16399616.4

Exponentiation

ny
n2 6723685451678724
n3 5.5132931100896E+23
n4 4.5207946053116E+31
n5 3.706964867515E+39

Nth Root

y√n
2√n 9055.2792336846
3√n 434.44476126773
4√n 95.159230943113
5√n 38.2613895875

Divisors of 81998082

1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 59, 69, 81, 118, 138, 162, 177, 207, 354, 373, 414, 531, 621, 746, 1062, 1119, 1242, 1357, 1593, 1863, 2238, 2714, 3186, 3357, 3726, 4071, 4779, 6714, 8142, 8579, 9558, 10071, 12213, 17158, 20142, 22007, 24426, 25737, 30213, 36639, 44014, 51474, 60426, 66021, 73278, 77211, 109917, 132042, 154422, 198063, 219834, 231633, 396126, 463266, 506161, 594189, 694899, 1012322, 1188378, 1389798, 1518483, 1782567, 3036966, 3565134, 4555449, 9110898, 13666347, 27332694, 40999041, 81998082

80 divisors

τ Total Divisors 80
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81998081
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0125
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 80
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81998082 can be divided by 80 positive divisors. The sum of these divisors (counting 81998082) is 1, the average is 0.0125.

Base conversion 81998082

Base System Value
2 Binary 100111000110011000100000010
3 Ternary 12201021221020000
4 Quaternary 10320303010002
5 Quinary 131442414312
6 Senary 12045300430
8 Octal 470630402
10 Decimal 81998082
12 Duodecimal 23564716
16 Hexadecimal 4e33102
20 Vigesimal 15c9f42
36 Base36 1cti4i

Cryptographic Hash Functions

md5 03d0d2cf9ed9d0dfe2987fa8b525797d
sha1 e84ddb2d4ae5e91f47fdca5d7ee83b4e61c25bf6
sha256 5ad9d566816808a71bf35b2329a55c20c91a85b29efaf3179b5e5c8c827b38ba
sha512 6e3aedba6622e84b813753a221c58951a9424cb06c1a104bf847b561e464e66fc4942906daa5f24d8a041da64bc18b54a2d0bb2fc7bbbffca9f94b54de1680d0
ripemd-160 49989b14fb5f2cda789543e42588ba8fd8bcfab4

81998082 as geometric shapes

Circle

Radius = n
Diameter 163996164
Circumference 515209144.03931
Area 2.1123080820042E+16

Sphere

Radius = n
Volume 2.309402817566E+24
Surface area 8.449232328017E+16
Circumference 515209144.03931

Square

Length = n
Perimeter 327992328
Area 6723685451678724
Diagonal 115962799.65298

Cube

Length = n
Surface area 40342112710072344
Volume 5.5132931100896E+23
Space diagonal 142024844.1472

Equilateral Triangle

Length = n
Perimeter 245994246
Area 2.9114412041048E+15
Altitude 71012422.0736

Triangular Pyramid

Length = n
Surface area 2.9114412041048E+15
Volume 6.4974782413557E+22
Height 38654266.550994