1978889693 is an odd 10-digits composite number following 1978889692
and preceding 1978889694 . In scientific notation, it is written as 1.978889693 × 10^9.
The sum of its digits is 68. It has a total of 2 prime factors and 4 positive divisors.
There are 1798990620 positive integers (up to 1978889693) that are relatively prime to 1978889693.
1978889693 has 4 divisors, whose sum is 2158788768
The reverse of 1978889693 is 3969888791
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 68
Digital Root 5
Name
one billion nine hundred seventy-eight million eight hundred eighty-nine thousand six hundred ninety-three
Scientific notation
1.978889693 × 10^9
Engineering notation
1.978889693 × 10^9
Prime Factorization
11 × 179899063
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1978889693
Product of the distinct prime numbers
The prime factorization of 1978889693 is 11 × 179899063.
Since it has a total of 2 prime factors.
2 , 6 , 12 , 26 , 271 , 789 , 5661 , 600 , 6234 , 38562 , 935343 , 136144 , 761630 , 3439780 , 50635707 , 72739061 , 452118165 , 404260891 , 598617262 , 5592385393
n×2
3957779386
n×3
5936669079
n×4
7915558772
n×5
9894448465
n÷2
989444846.5
n÷3
659629897.66667
n÷3
494722423.25
n÷5
395777938.6
n2
3916004417061634249
n3
7.7493407786657E+27
n4
1.5335090594446E+37
n5
3.0346452718571E+46
2 √n
44484.713025937
3 √n
1255.4724744952
4 √n
210.91399438145
5 √n
72.324313045158
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
-1978889692
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 1978889693 can be divided by 4 positive divisors.
The sum of these divisors (counting 1978889693) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101111100110111010111011101
3
Ternary
12002220122000022212
4
Quaternary
1311330313113131
5
Quinary
13023043432233
6
Senary
524210250205
8
Octal
16574672735
10
Decimal
1978889693
12
Duodecimal
472886965
16
Hexadecimal
75f375dd
20
Vigesimal
1ai8144d
36
Base36
wq6h25
md5
80bd9315b8e69b5a8eabfc0383288b66
sha1
20672dda4700df250d7f1e63b858de7e79aa1ea4
sha256
6ddf3ff4839d8bd0f75ec54d282c46520c69e574e9e0ea2ac56eac66efa2f4d0
sha512
1e6592446137831ecc79525cc2da8c25dd69ac2325d2b3cd111dbcad882b06ae9328145d6b4f5bcd6df5793324a8ea95e76aa8e876307c79ae86a392ebea17c1
ripemd-160
8917df2cbb95f0621a0edf368124342114cd58ef
Diameter
3957779386
Circumference
12433730643.587
Area
1.2302490708066E+19
Volume
3.2460362747227E+28
Surface area
4.9209962832264E+19
Circumference
12433730643.587
Perimeter
7915558772
Area
3916004417061634249
Diagonal
2798572642.2809
Surface area
2.349602650237E+19
Volume
7.7493407786657E+27
Space diagonal
3427537490.8504
Perimeter
5936669079
Area
1.6956796532537E+18
Altitude
1713768745.4252
Surface area
1.6956796532537E+18
Volume
9.1326856905333E+26
Height
932857547.42698