19902949 is an odd 8-digits composite number following 19902948
and preceding 19902950 . In scientific notation, it is written as 1.9902949 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 17516800 positive integers (up to 19902949) that are relatively prime to 19902949.
19902949 has 16 divisors, whose sum is 22415616
The reverse of 19902949 is 94920991
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
nineteen million nine hundred two thousand nine hundred forty-nine
Scientific notation
1.9902949 × 10^7
Engineering notation
1.9902949 × 10^6
Prime Factorization
11 × 137 × 47 × 281
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
19902949
Product of the distinct prime numbers
The prime factorization of 19902949 is 11 × 137 × 47 × 281.
Since it has a total of 4 prime factors.
3 , 8 , 34 , 100 , 706 , 777 , 1260 , 7843 , 60281 , 9293 , 491747 , 276209 , 2631959 , 1051207 , 34977021 , 27924148 , 591462913 , 983607256 , 9763202704 , 2682185998
n×2
39805898
n×3
59708847
n×4
79611796
n×5
99514745
n÷2
9951474.5
n÷3
6634316.3333333
n÷3
4975737.25
n÷5
3980589.8
n2
396127378896601
n3
7.8841030196827E+21
n4
1.5691690031149E+29
n5
3.1231090641377E+36
2 √n
4461.2721279922
3 √n
271.00198797578
4 √n
66.79275505616
5 √n
28.825940511071
1 , 11 , 47 , 137 , 281 , 517 , 1507 , 3091 , 6439 , 13207 , 38497 , 70829 , 145277 , 423467 , 1809359 , 19902949
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
-19902948
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 19902949 can be divided by 16 positive divisors.
The sum of these divisors (counting 19902949) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001011111011000111100101
3
Ternary
1101110011201021
4
Quaternary
1023323013211
5
Quinary
20043343244
6
Senary
1550331141
8
Octal
113730745
10
Decimal
19902949
12
Duodecimal
67b9ab1
16
Hexadecimal
12fb1e5
20
Vigesimal
647h79
36
Base36
bul7p
md5
3c594fdceb4b82d9770894eec6b1cd35
sha1
a6c44a24f6796249841ce3cd9b0ff79c6a639f18
sha256
afbdde5786afefa2958ce1b320732dab992d0f2e41db03763643a7b95d8eba70
sha512
ec44955a0300dd6ebcceb139547949092053568ed89e65188e8e87b4feeaa73a549a46d75fa63226d52b6647d52ebbdd904044d492bf952d70f297e107d67b15
ripemd-160
79a2d849fa81e5af1ee94cbb88767cf0b5cbc1bb
Diameter
39805898
Circumference
125053916.72634
Area
1.2444708634273E+15
Volume
3.3024853502374E+22
Surface area
4.9778834537094E+15
Circumference
125053916.72634
Perimeter
79611796
Area
396127378896601
Diagonal
28147020.40702
Surface area
2376764273379606
Volume
7.8841030196827E+21
Space diagonal
34472918.888452
Perimeter
59708847
Area
1.715281866295E+14
Altitude
17236459.444226
Surface area
1.715281866295E+14
Volume
9.2915045146517E+20
Height
9382340.1356733