1978889688 is an even 10-digits composite number following 1978889687
and preceding 1978889689 . In scientific notation, it is written as 1.978889688 × 10^9.
The sum of its digits is 72. It has a total of 6 prime factors and 24 positive divisors.
There are 659629872 positive integers (up to 1978889688) that are relatively prime to 1978889688.
1978889688 has 24 divisors, whose sum is 5359493100
The reverse of 1978889688 is 8869888791
Previous prime number is 3
Is Prime? no
Number parity even
Number length 10
Sum of Digits 72
Digital Root 9
Name
one billion nine hundred seventy-eight million eight hundred eighty-nine thousand six hundred eighty-eight
Scientific notation
1.978889688 × 10^9
Engineering notation
1.978889688 × 10^9
Prime Factorization
2 × 2 × 2 × 3 × 3 × 27484579
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
164907474
Product of the distinct prime numbers
The prime factorization of 1978889688 is 2 × 2 × 2 × 3 × 3 × 27484579.
Since it has a total of 6 prime factors.
2 , 4 , 96 , 50 , 441 , 125 , 8945 , 7478 , 34671 , 25348 , 54995 , 396141 , 108450 , 7870087 , 89758948 , 65801470 , 733951276 , 531700730 , 6254733661 , 6836143697
n×2
3957779376
n×3
5936669064
n×4
7915558752
n×5
9894448440
n÷2
989444844
n÷3
659629896
n÷3
494722422
n÷5
395777937.6
n2
3916004397272737344
n3
7.7493407199257E+27
n4
1.5335090439459E+37
n5
3.0346452335194E+46
2 √n
44484.712969738
3 √n
1255.4724734378
4 √n
210.91399424822
5 √n
72.32431300861
1 , 2 , 3 , 4 , 6 , 8 , 9 , 12 , 18 , 24 , 36 , 72 , 27484579 , 54969158 , 82453737 , 109938316 , 164907474 , 219876632 , 247361211 , 329814948 , 494722422 , 659629896 , 989444844 , 1978889688
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1978889687
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1978889688 can be divided by 24 positive divisors.
The sum of these divisors (counting 1978889688) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1110101111100110111010111011000
3
Ternary
12002220122000022200
4
Quaternary
1311330313113120
5
Quinary
13023043432223
6
Senary
524210250200
8
Octal
16574672730
10
Decimal
1978889688
12
Duodecimal
472886960
16
Hexadecimal
75f375d8
20
Vigesimal
1ai81448
36
Base36
wq6h20
md5
d7f82c4d050ccae92eb4132d8fdd369c
sha1
697dae541310381ec8d7c5ce1f3faa9b266bb1d5
sha256
84ee4f34c5094e03527bcdbb4726c3e5110bf72b5174f5cd2370d92bd0e48d08
sha512
cd1ff07fd358cf3e424900f11f92e413bb239479eb37ea995af5d9b5365c6a90cc7b6cd42e4d6ac448e07fb3ef4f2df979043f3bb7e3e8cc3e57e134f41f36ea
ripemd-160
2a76d18cfc8e382574560202c8a48cb0d8045dbd
Diameter
3957779376
Circumference
12433730612.171
Area
1.2302490645897E+19
Volume
3.2460362501177E+28
Surface area
4.9209962583589E+19
Circumference
12433730612.171
Perimeter
7915558752
Area
3916004397272737344
Diagonal
2798572635.2099
Surface area
2.3496026383636E+19
Volume
7.7493407199257E+27
Space diagonal
3427537482.1901
Perimeter
5936669064
Area
1.6956796446849E+18
Altitude
1713768741.0951
Surface area
1.6956796446849E+18
Volume
9.1326856213075E+26
Height
932857545.06995