71388981 (number)

71388981 is an odd 8-digits composite number following 71388980 and preceding 71388982. In scientific notation, it is written as 7.1388981 × 10^7. The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors. There are 45951360 positive integers (up to 71388981) that are relatively prime to 71388981.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.1388981 × 10^7
Engineering notation 7.1388981 × 10^6

Prime Factorization of 71388981

Prime Factorization 9 × 29 × 273521

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 71388981
Product of the distinct prime numbers

The prime factorization of 71388981 is 9 × 29 × 273521. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 71388981)

Multiplication

n×y
n×2 142777962
n×3 214166943
n×4 285555924
n×5 356944905

Division

n÷y
n÷2 35694490.5
n÷3 23796327
n÷3 17847245.25
n÷5 14277796.2

Exponentiation

ny
n2 5096386608218361
n3 3.6382584674276E+23
n4 2.5973156460427E+31
n5 1.8541971730635E+39

Nth Root

y√n
2√n 8449.2000213038
3√n 414.836595077
4√n 91.919530140791
5√n 37.215703806386

Divisors of 71388981

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 -71388980
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 71388981 can be divided by 8 positive divisors. The sum of these divisors (counting 71388981) is 1, the average is 0.125.

Base conversion 71388981

Base System Value
2 Binary 100010000010100111100110101
3 Ternary 11222022221021100
4 Quaternary 10100110330311
5 Quinary 121233421411
6 Senary 11030040313
8 Octal 420247465
10 Decimal 71388981
12 Duodecimal 1baa9099
16 Hexadecimal 4414f35
20 Vigesimal 1263c91
36 Base36 16i439

Cryptographic Hash Functions

md5 30b842707a97bb870de3eeb96c88eb8a
sha1 9468c9d0455fc2322a83e28a48c80c3dad05f9cf
sha256 e5170128fdb5119251663be50e442e9c573a3bfd24275d51091d723d6b361ce4
sha512 8d0bb2be071c95a63a762c581489d991a333031c36c33ca8798533c5560f2d2751d28e7439c670c490c59c6c43b2ce861e6a85ca275a66bc40f36cbfd4b21b80
ripemd-160 93abe515cdb622dc035c24252439a118dca8e6ab

71388981 as geometric shapes

Circle

Radius = n
Diameter 142777962
Circumference 448550196.51372
Area 1.6010770728232E+16

Sphere

Radius = n
Volume 1.5239901430842E+24
Surface area 6.4043082912929E+16
Circumference 448550196.51372

Square

Length = n
Perimeter 285555924
Area 5096386608218361
Diagonal 100959265.1342

Cube

Length = n
Surface area 30578319649310166
Volume 3.6382584674276E+23
Space diagonal 123649342.19257

Equilateral Triangle

Length = n
Perimeter 214166943
Area 2.206800135112E+15
Altitude 61824671.096285

Triangular Pyramid

Length = n
Surface area 2.206800135112E+15
Volume 4.287728723379E+22
Height 33653088.378065