1978391144 is an even 10-digits composite number following 1978391143
and preceding 1978391145 . In scientific notation, it is written as 1.978391144 × 10^9.
The sum of its digits is 47. It has a total of 5 prime factors and 16 positive divisors.
There are 975262960 positive integers (up to 1978391144) that are relatively prime to 1978391144.
1978391144 has 16 divisors, whose sum is 3761730720
The reverse of 1978391144 is 4411938791
Previous prime number is 71
Is Prime? no
Number parity even
Number length 10
Sum of Digits 47
Digital Root 2
Name
one billion nine hundred seventy-eight million three hundred ninety-one thousand one hundred forty-four
Scientific notation
1.978391144 × 10^9
Engineering notation
1.978391144 × 10^9
Prime Factorization
2 × 2 × 2 × 71 × 3483083
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
494597786
Product of the distinct prime numbers
The prime factorization of 1978391144 is 2 × 2 × 2 × 71 × 3483083.
Since it has a total of 5 prime factors.
7 , 10 , 63 , 67 , 726 , 668 , 6655 , 1995 , 38147 , 65410 , 371577 , 346584 , 3765840 , 1033746 , 24082992 , 68187728 , 78534684 , 568172146 , 6332540120 , 6646741903
n×2
3956782288
n×3
5935173432
n×4
7913564576
n×5
9891955720
n÷2
989195572
n÷3
659463714.66667
n÷3
494597786
n÷5
395678228.8
n2
3914031518657628736
n3
7.7434852938491E+27
n4
1.5319642729045E+37
n5
3.0308245504387E+46
2 √n
44479.109073811
3 √n
1255.3670336986
4 √n
210.90070904056
5 √n
72.320668491525
1 , 2 , 4 , 8 , 71 , 142 , 284 , 568 , 3483083 , 6966166 , 13932332 , 27864664 , 247298893 , 494597786 , 989195572 , 1978391144
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
-1978391143
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 1978391144 can be divided by 16 positive divisors.
The sum of these divisors (counting 1978391144) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110101111010111101101001101000
3
Ternary
12002212200200110002
4
Quaternary
1311322331221220
5
Quinary
13022432004034
6
Senary
524151442132
8
Octal
16572755150
10
Decimal
1978391144
12
Duodecimal
472686348
16
Hexadecimal
75ebda68
20
Vigesimal
1ai4ihh4
36
Base36
wpvsdk
md5
003f9c80059d57168f3a33b2fda87516
sha1
028ca7c258171e403f2e35cc3b465e4ffaef4715
sha256
08986d066378b07062f2a1313e33981002301c0b44a3dc70f336affd67c7c2f2
sha512
b14eca8d398c60140b38ac1a7a92b98b290ea8ffcba1c26721a86b9115c113f41dde7e7fadd284b00615523fd2aaf35d98518b3964cfcd55e6a8b097c3fda5ef
ripemd-160
13c1cdbda1b783905f1843ccc3b3adc366713469
Diameter
3956782288
Circumference
12430598167.835
Area
1.2296292664934E+19
Volume
3.2435835349783E+28
Surface area
4.9185170659735E+19
Circumference
12430598167.835
Perimeter
7913564576
Area
3914031518657628736
Diagonal
2797867587.5236
Surface area
2.3484189111946E+19
Volume
7.7434852938491E+27
Space diagonal
3426673978.6523
Perimeter
5935173432
Area
1.6948253631852E+18
Altitude
1713336989.3262
Surface area
1.6948253631852E+18
Volume
9.1257849354984E+26
Height
932622529.17454