78889721 is an odd 8-digits composite number following 78889720
and preceding 78889722 . In scientific notation, it is written as 7.8889721 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 78777744 positive integers (up to 78889721) that are relatively prime to 78889721.
78889721 has 4 divisors, whose sum is 79001700
The reverse of 78889721 is 12798887
Previous prime number is 709
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
seventy-eight million eight hundred eighty-nine thousand seven hundred twenty-one
Scientific notation
7.8889721 × 10^7
Engineering notation
7.8889721 × 10^6
Prime Factorization
709 × 111269
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78889721
Product of the distinct prime numbers
The prime factorization of 78889721 is 709 × 111269.
Since it has a total of 2 prime factors.
9 , 4 , 1 , 56 , 309 , 493 , 8198 , 6122 , 53408 , 7704 , 830629 , 414742 , 4286555 , 9841667 , 58676410 , 2541777 , 844892529 , 659522440 , 739235559 , 2739997557
n×2
157779442
n×3
236669163
n×4
315558884
n×5
394448605
n÷2
39444860.5
n÷3
26296573.666667
n÷3
19722430.25
n÷5
15777944.2
n2
6223588079457841
n3
4.9097712720735E+23
n4
3.873304858277E+31
n5
3.0556393961741E+39
2 √n
8881.9885723863
3 √n
428.8842916717
4 √n
94.244302599076
5 √n
37.96680782373
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
-78889720
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 78889721 can be divided by 4 positive divisors.
The sum of these divisors (counting 78889721) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101100111100001011111001
3
Ternary
12111110000100112
4
Quaternary
10230330023321
5
Quinary
130143432341
6
Senary
11454514105
8
Octal
454741371
10
Decimal
78889721
12
Duodecimal
22505935
16
Hexadecimal
4b3c2f9
20
Vigesimal
14d1461
36
Base36
1ayvp5
md5
a44a5d2330699db40959939ae1de18e2
sha1
a69e8fa4297612e9477658826993ea813cd68468
sha256
2a3f2664e056fc782c6d1b9f3bc8d936435073a258c047469f9407b8fef67357
sha512
6d73e3bfd677b0ec73f5b176cea884b9dd6f9245b15501e6e2ad0a49c70f6bfcce5596f1631868e5785261a8ded50df3f15925f512e6e792396d7143760fde67
ripemd-160
b1e0d72167e34314eb398915ebc0eb36c3fbb1ae
Diameter
157779442
Circumference
495678735.8747
Area
1.9551978589394E+16
Volume
2.0566001812203E+24
Surface area
7.8207914357575E+16
Circumference
495678735.8747
Perimeter
315558884
Area
6223588079457841
Diagonal
111566913.37003
Surface area
37341528476747046
Volume
4.9097712720735E+23
Space diagonal
136641004.96693
Perimeter
236669163
Area
2.6948926897502E+15
Altitude
68320502.483467
Surface area
2.6948926897502E+15
Volume
5.7862209342635E+22
Height
37188971.123343