91990161 (number)

91990161 is an odd 8-digits composite number following 91990160 and preceding 91990162. In scientific notation, it is written as 9.1990161 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 61044408 positive integers (up to 91990161) that are relatively prime to 91990161.

Interesting facts

Basic properties

Name

Name ninety-one million nine hundred ninety thousand one hundred sixty-one

Notation

Scientific notation 9.1990161 × 10^7
Engineering notation 9.1990161 × 10^6

Prime Factorization of 91990161

Prime Factorization 9 × 9 × 227 × 5003

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 10221129
Product of the distinct prime numbers

The prime factorization of 91990161 is 9 × 9 × 227 × 5003. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 4, 100, 80, 519, 67, 506, 5015, 81933, 72771, 224889, 52850, 6907031, 1059712, 45546458, 62212328, 389837191, 802118884, 6453518935, 7815755672

Basic calculations (n = 91990161)

Multiplication

n×y
n×2 183980322
n×3 275970483
n×4 367960644
n×5 459950805

Division

n÷y
n÷2 45995080.5
n÷3 30663387
n÷3 22997540.25
n÷5 18398032.2

Exponentiation

ny
n2 8462189720805921
n3 7.7843819482948E+23
n4 7.1608654870913E+31
n5 6.5872916905688E+39

Nth Root

y√n
2√n 9591.1501395818
3√n 451.41964994367
4√n 97.934417543486
5√n 39.151488287804

Divisors of 91990161

1, 9, 81, 227, 2043, 5003, 18387, 45027, 405243, 1135681, 10221129, 91990161

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -91990160
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 91990161 can be divided by 12 positive divisors. The sum of these divisors (counting 91990161) is 1, the average is 0.083333333333333.

Base conversion 91990161

Base System Value
2 Binary 101011110111010100010010001
3 Ternary 20102002120210000
4 Quaternary 11132322202101
5 Quinary 142022141121
6 Senary 13043400213
8 Octal 536724221
10 Decimal 91990161
12 Duodecimal 26983069
16 Hexadecimal 57ba891
20 Vigesimal 18eif81
36 Base36 1iro29

Cryptographic Hash Functions

md5 1afe2bcab33b1d82c4c03ec42b3d4dde
sha1 f7e5e2a57fc41d7db3da7bddff16dd3200b65baa
sha256 6a702c85e068d32b323bc4f302729775b3fef1634499a1867c030d074d5e00a4
sha512 58f1b2a866e983a3ae84fb6e5d417f7180195c8debe2c696417445e9e729222fc17b392dab994eb8f93418bc6ea82c76b704052aeb1023f1a08710a225958c12
ripemd-160 4cea0e04e275b4b9009ee93ee5d7a1171d8bd945

91990161 as geometric shapes

Circle

Radius = n
Diameter 183980322
Circumference 577991228.00028
Area 2.6584753060167E+16

Sphere

Radius = n
Volume 3.2607142855333E+24
Surface area 1.0633901224067E+17
Circumference 577991228.00028

Square

Length = n
Perimeter 367960644
Area 8462189720805921
Diagonal 130093733.29108

Cube

Length = n
Surface area 50773138324835526
Volume 7.7843819482948E+23
Space diagonal 159331632.64844

Equilateral Triangle

Length = n
Perimeter 275970483
Area 3.6642356349307E+15
Altitude 79665816.324221

Triangular Pyramid

Length = n
Surface area 3.6642356349307E+15
Volume 9.1739821049757E+22
Height 43364577.763695