20153991 is an odd 8-digits composite number following 20153990
and preceding 20153992 . In scientific notation, it is written as 2.0153991 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 11145600 positive integers (up to 20153991) that are relatively prime to 20153991.
20153991 has 32 divisors, whose sum is 31933440
The reverse of 20153991 is 19935102
Previous prime number is 431
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred fifty-three thousand nine hundred ninety-one
Scientific notation
2.0153991 × 10^7
Engineering notation
2.0153991 × 10^6
Prime Factorization
3 × 13 × 11 × 431 × 109
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20153991
Product of the distinct prime numbers
The prime factorization of 20153991 is 3 × 13 × 11 × 431 × 109.
Since it has a total of 5 prime factors.
8 , 3 , 33 , 79 , 153 , 964 , 6431 , 4767 , 30418 , 12421 , 40565 , 982192 , 7718304 , 6963213 , 87791946 , 45306312 , 243847304 , 476391177 , 1485722964 , 3898051228
n×2
40307982
n×3
60461973
n×4
80615964
n×5
100769955
n÷2
10076995.5
n÷3
6717997
n÷3
5038497.75
n÷5
4030798.2
n2
406183353228081
n3
8.1862156453086E+21
n4
1.6498491643961E+29
n5
3.3251045210596E+36
2 √n
4489.3196589238
3 √n
272.13664108495
4 √n
67.002385471891
5 √n
28.898294462895
1 , 3 , 11 , 13 , 33 , 39 , 109 , 143 , 327 , 429 , 431 , 1199 , 1293 , 1417 , 3597 , 4251 , 4741 , 5603 , 14223 , 15587 , 16809 , 46761 , 46979 , 61633 , 140937 , 184899 , 516769 , 610727 , 1550307 , 1832181 , 6717997 , 20153991
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20153990
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20153991 can be divided by 32 positive divisors.
The sum of these divisors (counting 20153991) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100111000011010000111
3
Ternary
1101220221002010
4
Quaternary
1030320122013
5
Quinary
20124411431
6
Senary
1555545303
8
Octal
114703207
10
Decimal
20153991
12
Duodecimal
68bb233
16
Hexadecimal
1338687
20
Vigesimal
65j4jb
36
Base36
bzyx3
md5
f5d4b3b059c88e434b52a11711eb84cd
sha1
4c1e6025486059b99109d97a4ff93f0f092b0cfe
sha256
7eb723050e1cae0433848770fc2ed2c832e245de841805f38b7fdd73c98bee81
sha512
4bd27cb6735aebacf52b54faca7a5bf100aadaa46171c089a24226cf5d4f4312cccf84c3dad4bcf841e1ed09c9391b1556d8a101f5fa958f92d9ab1d99bcfec6
ripemd-160
aafaed8fdd9f2683f2d4dbe822d3151fd76077d3
Diameter
40307982
Circumference
126631260.13223
Area
1.2760626385118E+15
Volume
3.4290339909338E+22
Surface area
5.1042505540472E+15
Circumference
126631260.13223
Perimeter
80615964
Area
406183353228081
Diagonal
28502047.408145
Surface area
2437100119368486
Volume
8.1862156453086E+21
Space diagonal
34907736.387286
Perimeter
60461973
Area
1.7588255124493E+14
Altitude
17453868.193643
Surface area
1.7588255124493E+14
Volume
9.6475476584218E+20
Height
9500682.4693818