1985278321 is an odd 10-digits composite number following 1985278320
and preceding 1985278322 . In scientific notation, it is written as 1.985278321 × 10^9.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 1795809600 positive integers (up to 1985278321) that are relatively prime to 1985278321.
1985278321 has 16 divisors, whose sum is 2161603584
The reverse of 1985278321 is 1238725891
Previous prime number is 1313
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 46
Digital Root 1
Name
one billion nine hundred eighty-five million two hundred seventy-eight thousand three hundred twenty-one
Scientific notation
1.985278321 × 10^9
Engineering notation
1.985278321 × 10^9
Prime Factorization
107 × 13 × 1313 × 1087
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1985278321
Product of the distinct prime numbers
The prime factorization of 1985278321 is 107 × 13 × 1313 × 1087.
Since it has a total of 4 prime factors.
9 , 8 , 57 , 41 , 938 , 318 , 1674 , 3261 , 20263 , 48436 , 12216 , 879664 , 4874823 , 1835574 , 31470719 , 63398892 , 980601196 , 661354629 , 1330695938 , 3841633624
n×2
3970556642
n×3
5955834963
n×4
7941113284
n×5
9926391605
n÷2
992639160.5
n÷3
661759440.33333
n÷3
496319580.25
n÷5
397055664.2
n2
3941330011832579041
n3
7.8246370283979E+27
n4
1.5534082262172E+37
n5
3.0839476751721E+46
2 √n
44556.462168803
3 √n
1256.8220748483
4 √n
211.08401684828
5 √n
72.370951077697
1 , 13 , 107 , 1087 , 1313 , 1391 , 14131 , 17069 , 116309 , 140491 , 1427231 , 1512017 , 1826383 , 18554003 , 152713717 , 1985278321
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
-1985278320
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 1985278321 can be divided by 16 positive divisors.
The sum of these divisors (counting 1985278321) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110010101001111000101110001
3
Ternary
12010100122120212201
4
Quaternary
1312111033011301
5
Quinary
13031212401241
6
Senary
524555223201
8
Octal
16625170561
10
Decimal
1985278321
12
Duodecimal
474a47b01
16
Hexadecimal
7654f171
20
Vigesimal
1b07jfg1
36
Base36
wtzek1
md5
dfc0cff593cdd6b6695bc4e6eee14ca4
sha1
9de3f0951acfd8c38a870f73fd778f81e9736617
sha256
a7be42eefe70e52d55a49de0d42685ae49e702ed7c3f8467bd2adee9bd8d2c91
sha512
4642d2456e1fab1c6edb897fbac4a7d7c5272638049ff0e756ede5d403f7c28923e00b79837265a8e5fef4b5036a3bbe35a8f4341810b6b37bfca49f95add9a1
ripemd-160
eb4e6edb8e7575d294994abd845a75f0d536bc89
Diameter
3970556642
Circumference
12473871577.169
Area
1.2382053410546E+19
Volume
3.2775762940562E+28
Surface area
4.9528213642185E+19
Circumference
12473871577.169
Perimeter
7941113284
Area
3941330011832579041
Diagonal
2807607526.6435
Surface area
2.3647980070995E+19
Volume
7.8246370283979E+27
Space diagonal
3438602919.137
Perimeter
5955834963
Area
1.7066459574725E+18
Altitude
1719301459.5685
Surface area
1.7066459574725E+18
Volume
9.2214231718392E+26
Height
935869175.54783