71661388 (number)

71661388 is an even 8-digits composite number following 71661387 and preceding 71661389. In scientific notation, it is written as 7.1661388 × 10^7. The sum of its digits is 40. It has a total of 5 prime factors and 18 positive divisors. There are 33944184 positive integers (up to 71661388) that are relatively prime to 71661388.

Interesting facts

Basic properties

Name

Name seventy-one million six hundred sixty-one thousand three hundred eighty-eight

Notation

Scientific notation 7.1661388 × 10^7
Engineering notation 7.1661388 × 10^6

Prime Factorization of 71661388

Prime Factorization 2 × 2 × 19 × 19 × 49627

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 1885826
Product of the distinct prime numbers

The prime factorization of 71661388 is 2 × 2 × 19 × 19 × 49627. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 9, 55, 11, 578, 373, 5052, 405, 23489, 20420, 44065, 869118, 1682845, 1228113, 24799352, 96767224, 883164361, 468595404, 7129283768, 6619797061

Basic calculations (n = 71661388)

Multiplication

n×y
n×2 143322776
n×3 214984164
n×4 286645552
n×5 358306940

Division

n÷y
n÷2 35830694
n÷3 23887129.333333
n÷3 17915347
n÷5 14332277.6

Exponentiation

ny
n2 5135354530086544
n3 3.6800663349809E+23
n4 2.637186614968E+31
n5 1.8898445324363E+39

Nth Root

y√n
2√n 8465.3049561135
3√n 415.36357165033
4√n 92.00709187945
5√n 37.244062188338

Divisors of 71661388

1, 2, 4, 19, 38, 76, 361, 722, 1444, 49627, 99254, 198508, 942913, 1885826, 3771652, 17915347, 35830694, 71661388

18 divisors

τ Total Divisors 18
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -71661387
Sum of the proper positive divisors of n
A Arithmetic Mean 0.055555555555556
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 18
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 71661388 can be divided by 18 positive divisors. The sum of these divisors (counting 71661388) is 1, the average is 0.055555555555556.

Base conversion 71661388

Base System Value
2 Binary 100010001010111011101001100
3 Ternary 11222211202221111
4 Quaternary 10101113131030
5 Quinary 121321131023
6 Senary 11035541404
8 Octal 421273514
10 Decimal 71661388
12 Duodecimal 1bbba864
16 Hexadecimal 445774c
20 Vigesimal 127hd98
36 Base36 16nya4

Cryptographic Hash Functions

md5 74a3f64d06fdf85c9fdc62e5988ca2b7
sha1 0b4c44b159c3d5ad56c3b6bc05d15972806afff4
sha256 08b97a17dd88e983685af926562a04d0b7bde650d4e7802585384ea989b74496
sha512 90ea7b1973bc7a49b4b68cf645994fbf6740032ee67b5890f551c78160bad4474109ddff94d0466c8cba61c798a88359e58aede1505eff22e1d4682031cd06c0
ripemd-160 19a06308ad507e883fe13f2192fe06c9b632ecb9

71661388 as geometric shapes

Circle

Radius = n
Diameter 143322776
Circumference 450261780.1737
Area 1.6133192065299E+16

Sphere

Radius = n
Volume 1.5415025816932E+24
Surface area 6.4532768261196E+16
Circumference 450261780.1737

Square

Length = n
Perimeter 286645552
Area 5135354530086544
Diagonal 101344506.80808

Cube

Length = n
Surface area 30812127180519264
Volume 3.6800663349809E+23
Space diagonal 124121164.95691

Equilateral Triangle

Length = n
Perimeter 214984164
Area 2.2236737402472E+15
Altitude 62060582.478453

Triangular Pyramid

Length = n
Surface area 2.2236737402472E+15
Volume 4.3369997678022E+22
Height 33781502.26936