1978889690 is an even 10-digits composite number following 1978889689
and preceding 1978889691 . In scientific notation, it is written as 1.978889690 × 10^9.
The sum of its digits is 65. It has a total of 4 prime factors and 16 positive divisors.
There are 789397584 positive integers (up to 1978889690) that are relatively prime to 1978889690.
1978889690 has 16 divisors, whose sum is 3571713792
The reverse of 1978889690 is 0969888791
Previous prime number is 367
Is Prime? no
Number parity even
Number length 10
Sum of Digits 65
Digital Root 2
Name
one billion nine hundred seventy-eight million eight hundred eighty-nine thousand six hundred ninety
Scientific notation
1.978889690 × 10^9
Engineering notation
1.978889690 × 10^9
Prime Factorization
2 × 5 × 367 × 539207
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1978889690
Product of the distinct prime numbers
The prime factorization of 1978889690 is 2 × 5 × 367 × 539207.
Since it has a total of 4 prime factors.
1 , 1 , 41 , 79 , 828 , 962 , 1449 , 7278 , 16054 , 19268 , 162100 , 949468 , 4876127 , 3634968 , 44834519 , 67171093 , 54897679 , 823626334 , 1889068689 , 6583218942
n×2
3957779380
n×3
5936669070
n×4
7915558760
n×5
9894448450
n÷2
989444845
n÷3
659629896.66667
n÷3
494722422.5
n÷5
395777938
n2
3916004405188296100
n3
7.7493407434217E+27
n4
1.5335090501454E+37
n5
3.0346452488545E+46
2 √n
44484.712992218
3 √n
1255.4724738608
4 √n
210.91399430151
5 √n
72.324313023229
1 , 2 , 5 , 10 , 367 , 734 , 1835 , 3670 , 539207 , 1078414 , 2696035 , 5392070 , 197888969 , 395777938 , 989444845 , 1978889690
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1978889689
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1978889690 can be divided by 16 positive divisors.
The sum of these divisors (counting 1978889690) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110101111100110111010111011010
3
Ternary
12002220122000022202
4
Quaternary
1311330313113122
5
Quinary
13023043432230
6
Senary
524210250202
8
Octal
16574672732
10
Decimal
1978889690
12
Duodecimal
472886962
16
Hexadecimal
75f375da
20
Vigesimal
1ai8144a
36
Base36
wq6h22
md5
86e871c09068552f5f51ce70bb611c7c
sha1
f48363415d6b5599712c8b7b8caba84446642794
sha256
f3991031d2d4019e29794ecab9d46cd6a95dd99dfcc5f0fc96c4c800691951cb
sha512
a99a0317a79663175f6e20ad3c41386ca7389cae37901fad91ce8dd45761907d1ee97c62ba4280ac8d56ea63c38174a7d09ef8e8e8f7a019cd7a68a73a866eed
ripemd-160
4665a1a3bcb83a7588a8713684c4cc533ad78cf8
Diameter
3957779380
Circumference
12433730624.737
Area
1.2302490670765E+19
Volume
3.2460362599597E+28
Surface area
4.9209962683059E+19
Circumference
12433730624.737
Perimeter
7915558760
Area
3916004405188296100
Diagonal
2798572638.0383
Surface area
2.349602643113E+19
Volume
7.7493407434217E+27
Space diagonal
3427537485.6542
Perimeter
5936669070
Area
1.6956796481124E+18
Altitude
1713768742.8271
Surface area
1.6956796481124E+18
Volume
9.1326856489978E+26
Height
932857546.01276