20151551 is an odd 8-digits composite number following 20151550
and preceding 20151552 . In scientific notation, it is written as 2.0151551 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 17272752 positive integers (up to 20151551) that are relatively prime to 20151551.
20151551 has 4 divisors, whose sum is 23030352
The reverse of 20151551 is 15515102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred fifty-one thousand five hundred fifty-one
Scientific notation
2.0151551 × 10^7
Engineering notation
2.0151551 × 10^6
Prime Factorization
7 × 2878793
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20151551
Product of the distinct prime numbers
The prime factorization of 20151551 is 7 × 2878793.
Since it has a total of 2 prime factors.
7 , 9 , 78 , 54 , 420 , 431 , 4580 , 4847 , 96186 , 3315 , 512881 , 204973 , 2445589 , 1161446 , 90425711 , 4623935 , 165051007 , 251205508 , 8062813447 , 3722914815
n×2
40303102
n×3
60454653
n×4
80606204
n×5
100757755
n÷2
10075775.5
n÷3
6717183.6666667
n÷3
5037887.75
n÷5
4030310.2
n2
406085007705601
n3
8.1832427431148E+21
n4
1.6490503348326E+29
n5
3.3230921923946E+36
2 √n
4489.0478945986
3 √n
272.12565831066
4 √n
67.000357421424
5 √n
28.897594698234
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
-20151550
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 20151551 can be divided by 4 positive divisors.
The sum of these divisors (counting 20151551) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110111110011111111
3
Ternary
1101220210201202
4
Quaternary
1030313303333
5
Quinary
20124322201
6
Senary
1555530115
8
Octal
114676377
10
Decimal
20151551
12
Duodecimal
68b993b
16
Hexadecimal
1337cff
20
Vigesimal
65iihb
36
Base36
bzx1b
md5
f1434cf1ff5c0caa46071fdcc5b152bd
sha1
5159a609b848362d55c76013be9a6947100442fe
sha256
5275cd82f514f97d4ed0b62a08fa37609687c400afa91593d810e20c17b14332
sha512
a4d41eb93501e9a687d77cf3dea3a3492928559138fbadaf5f48189b941d03e6c37cdce508461a2619c66c7f6f294d9b5d451647dd02fa8384a4030ee41d5791
ripemd-160
3251c5791f474829dd06b99fe5def17b532f3f3c
Diameter
40303102
Circumference
126615929.16008
Area
1.2757536769409E+15
Volume
3.4277887045749E+22
Surface area
5.1030147077635E+15
Circumference
126615929.16008
Perimeter
80606204
Area
406085007705601
Diagonal
28498596.727053
Surface area
2436510046233606
Volume
8.1832427431148E+21
Space diagonal
34903510.183315
Perimeter
60454653
Area
1.7583996638452E+14
Altitude
17451755.091658
Surface area
1.7583996638452E+14
Volume
9.6440440595868E+20
Height
9499532.242351