71388891 (number)

71388891 is an odd 8-digits composite number following 71388890 and preceding 71388892. In scientific notation, it is written as 7.1388891 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 40646880 positive integers (up to 71388891) that are relatively prime to 71388891.

Interesting facts

Basic properties

Name

Name seventy-one million three hundred eighty-eight thousand eight hundred ninety-one

Notation

Scientific notation 7.1388891 × 10^7
Engineering notation 7.1388891 × 10^6

Prime Factorization of 71388891

Prime Factorization 9 × 21 × 389 × 971

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 71388891
Product of the distinct prime numbers

The prime factorization of 71388891 is 9 × 21 × 389 × 971. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 1, 1, 49, 385, 162, 9138, 5917, 15113, 2245, 335854, 989306, 2731557, 2884032, 16718234, 11133568, 659548009, 835762327, 2404999377, 5119061764

Basic calculations (n = 71388891)

Multiplication

n×y
n×2 142777782
n×3 214166673
n×4 285555564
n×5 356944455

Division

n÷y
n÷2 35694445.5
n÷3 23796297
n÷3 17847222.75
n÷5 14277778.2

Exponentiation

ny
n2 5096373758209881
n3 3.6382447072011E+23
n4 2.597302548337E+31
n5 1.8541854851725E+39

Nth Root

y√n
2√n 8449.1946953541
3√n 414.83642074893
4√n 91.919501170068
5√n 37.215694422823

Divisors of 71388891

1, 9, 21, 189, 389, 971, 3501, 8169, 8739, 20391, 73521, 183519, 377719, 3399471, 7932099, 71388891

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -71388890
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 71388891 can be divided by 16 positive divisors. The sum of these divisors (counting 71388891) is 1, the average is 0.0625.

Base conversion 71388891

Base System Value
2 Binary 100010000010100111011011011
3 Ternary 11222022221011000
4 Quaternary 10100110323123
5 Quinary 121233421031
6 Senary 11030040043
8 Octal 420247333
10 Decimal 71388891
12 Duodecimal 1baa9023
16 Hexadecimal 4414edb
20 Vigesimal 1263c4b
36 Base36 16i40r

Cryptographic Hash Functions

md5 612c3349bd7d619d40a8d2e68d984226
sha1 5b9b88d36c3b607d85eac3b0854d35719c10b63b
sha256 07af0f466768737b5c2edf5b2648af6fa114516756ea6ae4a0b4a3504bc7e09a
sha512 61471c230888dd5cb96e77d4cb59f4102c28e55d70a243c691f0411c56a67ed6dd345702570676f675fb40927a295b6e20fbf305aaabcdfd2ab36386e9ef8314
ripemd-160 cac168b8f0132f667a57fb8aaff49063e80b6471

71388891 as geometric shapes

Circle

Radius = n
Diameter 142777782
Circumference 448549631.02705
Area 1.601073035874E+16

Sphere

Radius = n
Volume 1.523984379214E+24
Surface area 6.404292143496E+16
Circumference 448549631.02705

Square

Length = n
Perimeter 285555564
Area 5096373758209881
Diagonal 100959137.85497

Cube

Length = n
Surface area 30578242549259286
Volume 3.6382447072011E+23
Space diagonal 123649186.308

Equilateral Triangle

Length = n
Perimeter 214166673
Area 2.2067945708951E+15
Altitude 61824593.153998

Triangular Pyramid

Length = n
Surface area 2.2067945708951E+15
Volume 4.2877125067966E+22
Height 33653045.951658