91997891 (number)

91997891 is an odd 8-digits composite number following 91997890 and preceding 91997892. In scientific notation, it is written as 9.1997891 × 10^7. The sum of its digits is 53. It has a total of 2 prime factors and 4 positive divisors. There are 89754000 positive integers (up to 91997891) that are relatively prime to 91997891.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 9.1997891 × 10^7
Engineering notation 9.1997891 × 10^6

Prime Factorization of 91997891

Prime Factorization 41 × 2243851

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 91997891
Product of the distinct prime numbers

The prime factorization of 91997891 is 41 × 2243851. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 91997891)

Multiplication

n×y
n×2 183995782
n×3 275993673
n×4 367991564
n×5 459989455

Division

n÷y
n÷2 45998945.5
n÷3 30665963.666667
n÷3 22999472.75
n÷5 18399578.2

Exponentiation

ny
n2 8463611948447881
n3 7.7863444949961E+23
n4 7.163272721391E+31
n5 6.590059830258E+39

Nth Root

y√n
2√n 9591.5531067706
3√n 451.43229396313
4√n 97.936474853706
5√n 39.152146251284

Divisors of 91997891

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 -91997890
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 91997891 can be divided by 4 positive divisors. The sum of these divisors (counting 91997891) is 1, the average is 0.25.

Base conversion 91997891

Base System Value
2 Binary 101011110111100011011000011
3 Ternary 20102002222101022
4 Quaternary 11132330123003
5 Quinary 142022413031
6 Senary 13043500055
8 Octal 536743303
10 Decimal 91997891
12 Duodecimal 2698762b
16 Hexadecimal 57bc6c3
20 Vigesimal 18ejeeb
36 Base36 1iru0z

Cryptographic Hash Functions

md5 7cea848355e44dd49a383548653f5cbb
sha1 930e46818aa06cecf7e346de0d7bdecbd90591d1
sha256 c6e83443522ab2909cc40d2f5a32c18a66f57e0fab6717784f85d7f58dc5020f
sha512 5c0170442e66519522cea0d3eb2b5eaa4d5d57cad589be07d319cb5d1d7e348b1714ff1f59330f2e2871e3cb9c2a43c09267d623ad9054ac3aa164d0d22a3087
ripemd-160 0dbfe705c3f25672eb6d5c78104d26dafb0eb749

91997891 as geometric shapes

Circle

Radius = n
Diameter 183995782
Circumference 578039797.02271
Area 2.6589221120079E+16

Sphere

Radius = n
Volume 3.2615363551732E+24
Surface area 1.0635688448031E+17
Circumference 578039797.02271

Square

Length = n
Perimeter 367991564
Area 8463611948447881
Diagonal 130104665.16192

Cube

Length = n
Surface area 50781671690687286
Volume 7.7863444949961E+23
Space diagonal 159345021.40118

Equilateral Triangle

Length = n
Perimeter 275993673
Area 3.6648514775647E+15
Altitude 79672510.700592

Triangular Pyramid

Length = n
Surface area 3.6648514775647E+15
Volume 9.1762949884438E+22
Height 43368221.720641