19902415 is an odd 8-digits composite number following 19902414
and preceding 19902416 . In scientific notation, it is written as 1.9902415 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 14697120 positive integers (up to 19902415) that are relatively prime to 19902415.
19902415 has 4 divisors, whose sum is 20208672
The reverse of 19902415 is 51420991
Previous prime number is 65
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
nineteen million nine hundred two thousand four hundred fifteen
Scientific notation
1.9902415 × 10^7
Engineering notation
1.9902415 × 10^6
Prime Factorization
65 × 306191
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
19902415
Product of the distinct prime numbers
The prime factorization of 19902415 is 65 × 306191.
Since it has a total of 2 prime factors.
1 , 10 , 9 , 98 , 772 , 771 , 3827 , 1433 , 19963 , 13451 , 589518 , 695180 , 9702333 , 7911243 , 33058699 , 24647463 , 871778036 , 495889216 , 2614763622 , 4682362107
n×2
39804830
n×3
59707245
n×4
79609660
n×5
99512075
n÷2
9951207.5
n÷3
6634138.3333333
n÷3
4975603.75
n÷5
3980483
n2
396106122832225
n3
7.8834684406479E+21
n4
1.5690006054518E+29
n5
3.1226901184953E+36
2 √n
4461.2122791905
3 √n
270.99956427538
4 √n
66.792307035994
5 √n
28.825785828291
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-19902414
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 19902415 can be divided by 4 positive divisors.
The sum of these divisors (counting 19902415) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001011111010111111001111
3
Ternary
1101110010222111
4
Quaternary
1023322333033
5
Quinary
20043334130
6
Senary
1550324451
8
Octal
113727717
10
Decimal
19902415
12
Duodecimal
67b9727
16
Hexadecimal
12fafcf
20
Vigesimal
647g0f
36
Base36
buksv
md5
a3cbe0474419cae5bdfef1a5cdf58b45
sha1
73aef13fa9de51d95c6a0085a69ae2a158b2cd64
sha256
cd989a6efff7c3c4565ee42d9ea4786080bcf1a6f96433f5a4c2b8e0c7df7fa1
sha512
4c6bb2f0c5884f6250b152f12e9cc7dd0b05082c5271b53c62ec55d7ceb6cd189eb4574e004d5dcd6bbac47ab86c1dd55a71d637dbf118ba9741e1ce5063b47d
ripemd-160
b6bc46735befd86bf337f12b22710b95a808fabb
Diameter
39804830
Circumference
125050561.50539
Area
1.2444040855317E+15
Volume
3.3022195383929E+22
Surface area
4.9776163421266E+15
Circumference
125050561.50539
Perimeter
79609660
Area
396106122832225
Diagonal
28146265.216978
Surface area
2376636736993350
Volume
7.8834684406479E+21
Space diagonal
34471993.973321
Perimeter
59707245
Area
1.7151898248363E+14
Altitude
17235996.98666
Surface area
1.7151898248363E+14
Volume
9.2907566560871E+20
Height
9382088.4056592