1949 is an odd 4-digits prime number following 1948
and preceding 1950 . In scientific notation, it is written as 1.949 × 10^3.
The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors.
There are 1948 positive integers (up to 1949) that are relatively prime to 1949.
1949 has 2 divisors, whose sum is 1950
The reverse of 1949 is 9491
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 4
Sum of Digits 23
Digital Root 5
Name
one thousand nine hundred forty-nine
Scientific notation
1.949 × 10^3
Engineering notation
1.949 × 10^3
Prime Factorization
1949
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
1949
Product of the distinct prime numbers
The prime factorization of 1949 is 1949.
Since it has a total of 1 prime factors.
7 , 4 , 97 , 79 , 240 , 958 , 6006 , 4141 , 91290 , 38081 , 153582 , 906878 , 4716628 , 6977266 , 42858836 , 2960905 , 944435804 , 96966834 , 1593984211 , 8923433618
n×2
3898
n×3
5847
n×4
7796
n×5
9745
n÷2
974.5
n÷3
649.66666666667
n÷3
487.25
n÷5
389.8
n2
3798601
n3
7403473349
n4
14429369557201
n5
28122841266984749
2 √n
44.147480109288
3 √n
12.491193797521
4 √n
6.6443570124797
5 √n
4.5494863655643
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
1950
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
975
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
44.158804331639
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9989743589744
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1949 can be divided by 2 positive divisors.
The sum of these divisors (counting 1949) is 1950, the average is 975.
Base
System
Value
2
Binary
11110011101
3
Ternary
2200012
4
Quaternary
132131
5
Quinary
30244
6
Senary
13005
8
Octal
3635
10
Decimal
1949
12
Duodecimal
1165
16
Hexadecimal
79d
20
Vigesimal
4h9
36
Base36
1i5
md5
36ac8e558ac7690b6f44e2cb5ef93322
sha1
42f19b8b8381a5af8a5ef02da6707a9310899209
sha256
82887006d04d939ffca870bc268a940df6cf01dbdf12e228ccf476d07d7c9424
sha512
f73a6a9ac4a14ecbe3cb5c4fc7f47815affb804c8ab2c81b270d828738e9e33f6305f9932c0c5e943cc4f1320a1f7634caef54ec9f21785a851d2f64557549b0
ripemd-160
797a004684213bca3aaf0403c9ce478cc98e10e7
Diameter
3898
Circumference
12245.928163693
Area
11933656.995519
Volume
31011596645.688
Surface area
47734627.982075
Circumference
12245.928163693
Perimeter
7796
Area
3798601
Diagonal
2756.3022330652
Surface area
22791606
Volume
7403473349
Space diagonal
3375.7670239517
Perimeter
5847
Area
1644842.4824205
Altitude
1687.8835119759
Surface area
1644842.4824205
Volume
872507701.56863
Height
918.76741102172