99687981 (number)

99687981 is an odd 8-digits composite number following 99687980 and preceding 99687982. In scientific notation, it is written as 9.9687981 × 10^7. The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors. There are 66458652 positive integers (up to 99687981) that are relatively prime to 99687981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 9.9687981 × 10^7
Engineering notation 9.9687981 × 10^6

Prime Factorization of 99687981

Prime Factorization 3 × 33229327

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 99687981
Product of the distinct prime numbers

The prime factorization of 99687981 is 3 × 33229327. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 99687981)

Multiplication

n×y
n×2 199375962
n×3 299063943
n×4 398751924
n×5 498439905

Division

n÷y
n÷2 49843990.5
n÷3 33229327
n÷3 24921995.25
n÷5 19937596.2

Exponentiation

ny
n2 9937693555856361
n3 9.9066860638003E+23
n4 9.8757753210109E+31
n5 9.844961025612E+39

Nth Root

y√n
2√n 9984.3868614953
3√n 463.67562575829
4√n 99.921903812404
5√n 39.785842590474

Divisors of 99687981

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 -99687980
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 99687981 can be divided by 4 positive divisors. The sum of these divisors (counting 99687981) is 1, the average is 0.25.

Base conversion 99687981

Base System Value
2 Binary 101111100010001111000101101
3 Ternary 20221120200012110
4 Quaternary 11330101320231
5 Quinary 201010003411
6 Senary 13520354233
8 Octal 574217055
10 Decimal 99687981
12 Duodecimal 29475979
16 Hexadecimal 5f11e2d
20 Vigesimal 1b30jj1
36 Base36 1ncnql

Cryptographic Hash Functions

md5 f34fb04e3c3ae8e8eaa5c3f8ea3de510
sha1 b7dc88d2b2775b263733d77e070471f824435d6c
sha256 44edbe71d3afa799146fc1af76038b4ed9fafa0d0b1aeb811b90110d808e001d
sha512 157db50c415b74328feb6346179baedbd10ee054408e3a177a266b0276c5cbf2673a4eb76ff025d10c223edb12f75922ed495ca9aa935ff1e8798e7842ecfc2c
ripemd-160 7e8f01c19554ebdc27150e3c2a333f3ab4e922fc

99687981 as geometric shapes

Circle

Radius = n
Diameter 199375962
Circumference 626358057.5216
Area 3.1220185068705E+16

Sphere

Radius = n
Volume 4.1497029545941E+24
Surface area 1.2488074027482E+17
Circumference 626358057.5216

Square

Length = n
Perimeter 398751924
Area 9937693555856361
Diagonal 140980094.73579

Cube

Length = n
Surface area 59626161335138166
Volume 9.9066860638003E+23
Space diagonal 172664647.99596

Equilateral Triangle

Length = n
Perimeter 299063943
Area 4.3031475371983E+15
Altitude 86332323.99798

Triangular Pyramid

Length = n
Surface area 4.3031475371983E+15
Volume 1.1675141491332E+23
Height 46993364.91193