71987145 (number)

71987145 is an odd 8-digits composite number following 71987144 and preceding 71987146. In scientific notation, it is written as 7.1987145 × 10^7. The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors. There are 37321152 positive integers (up to 71987145) that are relatively prime to 71987145.

Interesting facts

Basic properties

Name

Name seventy-one million nine hundred eighty-seven thousand one hundred forty-five

Notation

Scientific notation 7.1987145 × 10^7
Engineering notation 7.1987145 × 10^6

Prime Factorization of 71987145

Prime Factorization 5 × 3 × 67 × 83 × 863

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 71987145
Product of the distinct prime numbers

The prime factorization of 71987145 is 5 × 3 × 67 × 83 × 863. Since it has a total of 5 prime factors.

Most popular turbo-numbers

8, 4, 29, 40, 378, 986, 4521, 6810, 87276, 75204, 24443, 864086, 6268906, 1330700, 99349082, 36272120, 264616680, 120539064, 8336384506, 434208458

Basic calculations (n = 71987145)

Multiplication

n×y
n×2 143974290
n×3 215961435
n×4 287948580
n×5 359935725

Division

n÷y
n÷2 35993572.5
n÷3 23995715
n÷3 17996786.25
n÷5 14397429

Exponentiation

ny
n2 5182149045251025
n3 3.730481147321E+23
n4 2.6854668727196E+31
n5 1.9331909315916E+39

Nth Root

y√n
2√n 8484.5238522854
3√n 415.99200436124
4√n 92.111475139015
5√n 37.277861458995

Divisors of 71987145

1, 3, 5, 15, 67, 83, 201, 249, 335, 415, 863, 1005, 1245, 2589, 4315, 5561, 12945, 16683, 27805, 57821, 71629, 83415, 173463, 214887, 289105, 358145, 867315, 1074435, 4799143, 14397429, 23995715, 71987145

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -71987144
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 71987145 can be divided by 32 positive divisors. The sum of these divisors (counting 71987145) is 1, the average is 0.03125.

Base conversion 71987145

Base System Value
2 Binary 100010010100110111111001001
3 Ternary 12000110022210120
4 Quaternary 10102212333021
5 Quinary 121412042040
6 Senary 11050533453
8 Octal 422467711
10 Decimal 71987145
12 Duodecimal 20137289
16 Hexadecimal 44a6fc9
20 Vigesimal 129i7h5
36 Base36 16uxmx

Cryptographic Hash Functions

md5 06c9a4fb5f7f355581698314e69becd0
sha1 163cd9f7a9c75031bb8424f102d4d6276f91ead3
sha256 4edfad2da876b3bc0af0eba414e5f20012c45157587725a7a1b26d3ccec7fba1
sha512 2f5e2ccc35c89ba33921547841aa5f08244e89a10138c60b1947e76a98f2c082c1ad3d492e449d8ee41231621aae4fdf74bcfb7e57467eba8077f9f684ea9fcd
ripemd-160 ba5ecbc468c7f21fa3e722b6debdb222f0057fe7

71987145 as geometric shapes

Circle

Radius = n
Diameter 143974290
Circumference 452308571.76981
Area 1.6280201370368E+16

Sphere

Radius = n
Volume 1.5626202889038E+24
Surface area 6.5120805481472E+16
Circumference 452308571.76981

Square

Length = n
Perimeter 287948580
Area 5182149045251025
Diagonal 101805196.77552

Cube

Length = n
Surface area 31092894271506150
Volume 3.730481147321E+23
Space diagonal 124685392.63183

Equilateral Triangle

Length = n
Perimeter 215961435
Area 2.2439363596923E+15
Altitude 62342696.315914

Triangular Pyramid

Length = n
Surface area 2.2439363596923E+15
Volume 4.3964141939321E+22
Height 33935065.59184