20138455 is an odd 8-digits composite number following 20138454
and preceding 20138456 . In scientific notation, it is written as 2.0138455 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 14502400 positive integers (up to 20138455) that are relatively prime to 20138455.
20138455 has 16 divisors, whose sum is 26702784
The reverse of 20138455 is 55483102
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million one hundred thirty-eight thousand four hundred fifty-five
Scientific notation
2.0138455 × 10^7
Engineering notation
2.0138455 × 10^6
Prime Factorization
17 × 5 × 23 × 10301
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20138455
Product of the distinct prime numbers
The prime factorization of 20138455 is 17 × 5 × 23 × 10301.
Since it has a total of 4 prime factors.
2 , 9 , 84 , 84 , 923 , 299 , 8710 , 8878 , 4905 , 47591 , 572114 , 856278 , 1223361 , 2544655 , 86198396 , 20889187 , 363954172 , 733764423 , 4678324920 , 9582541331
n×2
40276910
n×3
60415365
n×4
80553820
n×5
100692275
n÷2
10069227.5
n÷3
6712818.3333333
n÷3
5034613.75
n÷5
4027691
n2
405557369787025
n3
8.1672988413744E+21
n4
1.6447678018857E+29
n5
3.3123082363724E+36
2 √n
4487.588996332
3 √n
272.06669626683
4 √n
66.9894692943
5 √n
28.893837753521
1 , 5 , 17 , 23 , 85 , 115 , 391 , 1955 , 10301 , 51505 , 175117 , 236923 , 875585 , 1184615 , 4027691 , 20138455
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
-20138454
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 20138455 can be divided by 16 positive divisors.
The sum of these divisors (counting 20138455) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110100100111010111
3
Ternary
1101220010202201
4
Quaternary
1030310213113
5
Quinary
20123412310
6
Senary
1555345331
8
Octal
114644727
10
Decimal
20138455
12
Duodecimal
68b2247
16
Hexadecimal
13349d7
20
Vigesimal
65h62f
36
Base36
bzmxj
md5
ea401ad4c6c42ece5a4af8f60c15a788
sha1
0a781b2f1ee89ae5a0b524383ad38df228ea929e
sha256
5446cfafb02c196ac6003b3f5a37e9897cb29c032a85e851fe144907c6b9d71e
sha512
d70940b9bf0e9858b8a70027a587a626fa574cde12df03de884f8f3ccb1861ddd2ca2af1a9737a23b379c1a54e7bab1f7204d3d3feaadcea9ab29a4fc1099ce7
ripemd-160
0cf941c8037d736b51abcba50f2a26afb0d26664
Diameter
40276910
Circumference
126533644.5653
Area
1.2740960535321E+15
Volume
3.4211101386312E+22
Surface area
5.0963842141285E+15
Circumference
126533644.5653
Perimeter
80553820
Area
405557369787025
Diagonal
28480076.18624
Surface area
2433344218722150
Volume
8.1672988413744E+21
Space diagonal
34880827.245939
Perimeter
60415365
Area
1.7561149246378E+14
Altitude
17440413.62297
Surface area
1.7561149246378E+14
Volume
9.6252539911881E+20
Height
9493358.7287468