71978721 (number)

71978721 is an odd 8-digits composite number following 71978720 and preceding 71978722. In scientific notation, it is written as 7.1978721 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 47985812 positive integers (up to 71978721) that are relatively prime to 71978721.

Interesting facts

Basic properties

Name

Name seventy-one million nine hundred seventy-eight thousand seven hundred twenty-one

Notation

Scientific notation 7.1978721 × 10^7
Engineering notation 7.1978721 × 10^6

Prime Factorization of 71978721

Prime Factorization 3 × 23992907

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 71978721
Product of the distinct prime numbers

The prime factorization of 71978721 is 3 × 23992907. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 9, 15, 45, 634, 536, 4694, 9990, 5870, 67277, 612496, 933923, 9354966, 3305578, 74250452, 63939917, 272577304, 138182168, 4595801965, 6954363377

Basic calculations (n = 71978721)

Multiplication

n×y
n×2 143957442
n×3 215936163
n×4 287914884
n×5 359893605

Division

n÷y
n÷2 35989360.5
n÷3 23992907
n÷3 17994680.25
n÷5 14395744.2

Exponentiation

ny
n2 5180936276795841
n3 3.7291716678627E+23
n4 2.6842100704219E+31
n5 1.9320600776429E+39

Nth Root

y√n
2√n 8484.0274044819
3√n 415.97577714296
4√n 92.108780278983
5√n 37.276988960425

Divisors of 71978721

1, 3, 23992907, 71978721

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -71978720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 71978721 can be divided by 4 positive divisors. The sum of these divisors (counting 71978721) is 1, the average is 0.25.

Base conversion 71978721

Base System Value
2 Binary 100010010100100111011100001
3 Ternary 12000102220020120
4 Quaternary 10102210323201
5 Quinary 121411304341
6 Senary 11050430453
8 Octal 422447341
10 Decimal 71978721
12 Duodecimal 20132429
16 Hexadecimal 44a4ee1
20 Vigesimal 129h6g1
36 Base36 16ur4x

Cryptographic Hash Functions

md5 03079f7007b15def8bae02eb0b3fee54
sha1 c007e310deab213c9e0ada1bcd287f2205fed2e2
sha256 5e9672b51ec42f93f4b0073d22ceb41bb6df808ee2f272ced3cedb974b42660a
sha512 da83cdb974ffa71fa33ca23c206736c5e52e784efc1373520da486ceef19d12a7a27ba0b13efefc1d15c563ab818f4bdaca5886df585c84aa4126b1b9f5be57f
ripemd-160 27eb6bbe889ea30cbdc119747ed9f1dbc70ad3bb

71978721 as geometric shapes

Circle

Radius = n
Diameter 143957442
Circumference 452255642.21678
Area 1.6276391345899E+16

Sphere

Radius = n
Volume 1.562071775431E+24
Surface area 6.5105565383595E+16
Circumference 452255642.21678

Square

Length = n
Perimeter 287914884
Area 5180936276795841
Diagonal 101793283.44047

Cube

Length = n
Surface area 31085617660775046
Volume 3.7291716678627E+23
Space diagonal 124670801.83582

Equilateral Triangle

Length = n
Perimeter 215936163
Area 2.2434112155468E+15
Altitude 62335400.917912

Triangular Pyramid

Length = n
Surface area 2.2434112155468E+15
Volume 4.3948709575907E+22
Height 33931094.480156