71978992 is an even 8-digits composite number following 71978991
and preceding 71978993 . In scientific notation, it is written as 7.1978992 × 10^7.
The sum of its digits is 52. It has a total of 6 prime factors and 20 positive divisors.
There are 34095168 positive integers (up to 71978992) that are relatively prime to 71978992.
71978992 has 20 divisors, whose sum is 146799880
The reverse of 71978992 is 29987917
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 52
Digital Root 7
Name
seventy-one million nine hundred seventy-eight thousand nine hundred ninety-two
Scientific notation
7.1978992 × 10^7
Engineering notation
7.1978992 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 19 × 236773
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
8997374
Product of the distinct prime numbers
The prime factorization of 71978992 is 2 × 2 × 2 × 2 × 19 × 236773.
Since it has a total of 6 prime factors.
10 , 2 , 21 , 68 , 723 , 351 , 1846 , 9453 , 77438 , 28874 , 691692 , 476473 , 4407936 , 6523188 , 25967456 , 88909913 , 200717083 , 561251668 , 9831072004 , 7753714053
n×2
143957984
n×3
215936976
n×4
287915968
n×5
359894960
n÷2
35989496
n÷3
23992997.333333
n÷3
17994748
n÷5
14395798.4
n2
5180975289336064
n3
3.7292137890332E+23
n4
2.6842504948711E+31
n5
1.9320964489632E+39
2 √n
8484.0433756553
3 √n
415.97629919212
4 √n
92.108866976287
5 √n
37.277017029968
1 , 2 , 4 , 8 , 16 , 19 , 38 , 76 , 152 , 304 , 236773 , 473546 , 947092 , 1894184 , 3788368 , 4498687 , 8997374 , 17994748 , 35989496 , 71978992
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-71978991
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 71978992 can be divided by 20 positive divisors.
The sum of these divisors (counting 71978992) is 1, the average is 0.05.
Base
System
Value
2
Binary
100010010100100111111110000
3
Ternary
12000102220121121
4
Quaternary
10102210333300
5
Quinary
121411311432
6
Senary
11050432024
8
Octal
422447760
10
Decimal
71978992
12
Duodecimal
20132614
16
Hexadecimal
44a4ff0
20
Vigesimal
129h79c
36
Base36
16urcg
md5
e2776c302f03b1405c497043b01a29af
sha1
859e9463d26a57a0243d88835d6f8a2612354a5c
sha256
810072795caa43a8baddaae83d87d2a3cb7c4c33a2b227692e48eded6954a7d0
sha512
8136bcf1b02362ad897960d83a3f724ce373cd1d85632dc9aed7f459da07e2422cec04ad28b94da428e01c0786a12762d416f43964a6008d4eb3e858389c3942
ripemd-160
87133ee70c42c70c96d4cb99ce1733212f977d19
Diameter
143957984
Circumference
452257344.96
Area
1.6276513907408E+16
Volume
1.5620894191057E+24
Surface area
6.5106055629634E+16
Circumference
452257344.96
Perimeter
287915968
Area
5180975289336064
Diagonal
101793666.69234
Surface area
31085851736016384
Volume
3.7292137890332E+23
Space diagonal
124671271.22159
Perimeter
215936976
Area
2.2434281084722E+15
Altitude
62335635.610797
Surface area
2.2434281084722E+15
Volume
4.3949205978662E+22
Height
33931222.230782