71387991 (number)

71387991 is an odd 8-digits composite number following 71387990 and preceding 71387992. In scientific notation, it is written as 7.1387991 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 47306016 positive integers (up to 71387991) that are relatively prime to 71387991.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.1387991 × 10^7
Engineering notation 7.1387991 × 10^6

Prime Factorization of 71387991

Prime Factorization 9 × 167 × 47497

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 71387991
Product of the distinct prime numbers

The prime factorization of 71387991 is 9 × 167 × 47497. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 71387991)

Multiplication

n×y
n×2 142775982
n×3 214163973
n×4 285551964
n×5 356939955

Division

n÷y
n÷2 35693995.5
n÷3 23795997
n÷3 17846997.75
n÷5 14277598.2

Exponentiation

ny
n2 5096245259016081
n3 3.6381071068443E+23
n4 2.5971715740044E+31
n5 1.8540686095048E+39

Nth Root

y√n
2√n 8449.1414356726
3√n 414.8346774602
4√n 91.91921146133
5√n 37.215600586672

Divisors of 71387991

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -71387990
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 71387991 can be divided by 8 positive divisors. The sum of these divisors (counting 71387991) is 1, the average is 0.125.

Base conversion 71387991

Base System Value
2 Binary 100010000010100101101010111
3 Ternary 11222022212220200
4 Quaternary 10100110231113
5 Quinary 121233403431
6 Senary 11030031543
8 Octal 420245527
10 Decimal 71387991
12 Duodecimal 1baa85b3
16 Hexadecimal 4414b57
20 Vigesimal 12639jb
36 Base36 16i3br

Cryptographic Hash Functions

md5 b9ac5b263bc461c1337eaff0fe5817ca
sha1 eed77b9045a83fccc1f8eb9297d283ea4aa98e04
sha256 f5f2715cf89b0963d578b68ea4d3284c360db59347b9d4bc50074de988cc05b0
sha512 ddfb8eb404a7975e0b9d4430ee7eaf86f9ef6606c66a6230159fc5d786443d07a08fbe79a961a16e0defb613c90d3aafc1c1fea7d60bc108118f1420aa12c902
ripemd-160 c1656883fb4f1dae79319f13bd32358c38e431c7

71387991 as geometric shapes

Circle

Radius = n
Diameter 142775982
Circumference 448543976.16027
Area 1.6010326666617E+16

Sphere

Radius = n
Volume 1.5239267413113E+24
Surface area 6.4041306666467E+16
Circumference 448543976.16027

Square

Length = n
Perimeter 285551964
Area 5096245259016081
Diagonal 100957865.06277

Cube

Length = n
Surface area 30577471554096486
Volume 3.6381071068443E+23
Space diagonal 123647627.46227

Equilateral Triangle

Length = n
Perimeter 214163973
Area 2.206738929112E+15
Altitude 61823813.731135

Triangular Pyramid

Length = n
Surface area 2.206738929112E+15
Volume 4.287550343221E+22
Height 33652621.687589