81998770 (number)

81998770 is an even 8-digits composite number following 81998769 and preceding 81998771. In scientific notation, it is written as 8.1998770 × 10^7. The sum of its digits is 49. It has a total of 4 prime factors and 16 positive divisors. There are 27427200 positive integers (up to 81998770) that are relatively prime to 81998770.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1998770 × 10^7
Engineering notation 8.1998770 × 10^6

Prime Factorization of 81998770

Prime Factorization 2 × 35 × 41 × 28571

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81998770
Product of the distinct prime numbers

The prime factorization of 81998770 is 2 × 35 × 41 × 28571. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 48, 95, 68, 379, 2418, 3177, 33445, 75611, 689588, 789253, 905847, 2020173, 25977688, 94432846, 423220719, 244127904, 18199689, 5705808135

Basic calculations (n = 81998770)

Multiplication

n×y
n×2 163997540
n×3 245996310
n×4 327995080
n×5 409993850

Division

n÷y
n÷2 40999385
n÷3 27332923.333333
n÷3 20499692.5
n÷5 16399754

Exponentiation

ny
n2 6723798281512900
n3 5.5134318881217E+23
n4 4.5209463330476E+31
n5 3.7071203854591E+39

Nth Root

y√n
2√n 9055.3172224942
3√n 434.44597632526
4√n 95.159430549443
5√n 38.261453793264

Divisors of 81998770

1, 2, 35, 41, 70, 82, 1435, 2870, 28571, 57142, 999985, 1171411, 1999970, 2342822, 40999385, 81998770

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 -81998769
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 81998770 can be divided by 16 positive divisors. The sum of these divisors (counting 81998770) is 1, the average is 0.0625.

Base conversion 81998770

Base System Value
2 Binary 100111000110011001110110010
3 Ternary 12201021222011111
4 Quaternary 10320303032302
5 Quinary 131442430040
6 Senary 12045303534
8 Octal 470631662
10 Decimal 81998770
12 Duodecimal 23564baa
16 Hexadecimal 4e333b2
20 Vigesimal 15c9gia
36 Base36 1ctinm

Cryptographic Hash Functions

md5 c7a31553adedc5ccc66f783461166ba1
sha1 23b830772f3dbb30987676b71ef4f38618539bec
sha256 4d181aca1a3f1824bed1f8bece0ce615b6b820940d94d12bfb520ab2c8607028
sha512 45ca5134666f2ce090e6eabc5469daf67ea711bfafccc2d77d472e95b6ed33a59dd6d62038a62e46bbc9460ab9753b4de3573c25e512f0ccc01cf1406d65cc17
ripemd-160 56608ee2b86714c2cf6dd7e99ea37261fa8a920d

81998770 as geometric shapes

Circle

Radius = n
Diameter 163997540
Circumference 515213466.8708
Area 2.1123435285421E+16

Sphere

Radius = n
Volume 2.3094609487721E+24
Surface area 8.4493741141682E+16
Circumference 515213466.8708

Square

Length = n
Perimeter 327995080
Area 6723798281512900
Diagonal 115963772.63191

Cube

Length = n
Surface area 40342789689077400
Volume 5.5134318881217E+23
Space diagonal 142026035.79815

Equilateral Triangle

Length = n
Perimeter 245996310
Area 2.9114900608562E+15
Altitude 71013017.899077

Triangular Pyramid

Length = n
Surface area 2.9114900608562E+15
Volume 6.497641792835E+22
Height 38654590.877304