20155639 is an odd 8-digits composite number following 20155638
and preceding 20155640 . In scientific notation, it is written as 2.0155639 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 16511904 positive integers (up to 20155639) that are relatively prime to 20155639.
20155639 has 16 divisors, whose sum is 24076800
The reverse of 20155639 is 93655102
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred fifty-five thousand six hundred thirty-nine
Scientific notation
2.0155639 × 10^7
Engineering notation
2.0155639 × 10^6
Prime Factorization
37 × 7 × 59 × 1319
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20155639
Product of the distinct prime numbers
The prime factorization of 20155639 is 37 × 7 × 59 × 1319.
Since it has a total of 4 prime factors.
9 , 2 , 10 , 26 , 241 , 384 , 5185 , 3605 , 98479 , 50704 , 238078 , 613489 , 7470296 , 906886 , 18590567 , 49518765 , 858198054 , 401133504 , 633366458 , 706879248
n×2
40311278
n×3
60466917
n×4
80622556
n×5
100778195
n÷2
10077819.5
n÷3
6718546.3333333
n÷3
5038909.75
n÷5
4031127.8
n2
406249783498321
n3
8.1882239800203E+21
n4
1.6503888659243E+29
n5
3.326464219119E+36
2 √n
4489.5032019144
3 √n
272.14405845721
4 √n
67.003755132936
5 √n
28.898767052484
1 , 7 , 37 , 59 , 259 , 413 , 1319 , 2183 , 9233 , 15281 , 48803 , 77821 , 341621 , 544747 , 2879377 , 20155639
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
-20155638
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 20155639 can be divided by 16 positive divisors.
The sum of these divisors (counting 20155639) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111000110011110111
3
Ternary
1101221000100011
4
Quaternary
1030320303313
5
Quinary
20124440024
6
Senary
2000001051
8
Octal
114706367
10
Decimal
20155639
12
Duodecimal
6900187
16
Hexadecimal
1338cf7
20
Vigesimal
65j91j
36
Base36
c006v
md5
239a874631aa144ec3451a66569765cc
sha1
f4d31eb94d07a1bc91c8a6439cfb8b3414b485ad
sha256
135979933a1156b94b0f98e12a3203ebe52e5ba0e6dd11d1450cc71a597df151
sha512
e07e03a3b0b4cadd1845f3e9b12861e3e9a13e44a3247b638a3441b9bc836780754e4192770326e709d5a6716d62fdafdab851c0b17d2e55dcb7fb432f2fe5b4
ripemd-160
80405ce67e6a347b66cb082dc8ac7cd6e94cd7f1
Diameter
40311278
Circumference
126641614.82162
Area
1.2762713353608E+15
Volume
3.4298752402106E+22
Surface area
5.1050853414431E+15
Circumference
126641614.82162
Perimeter
80622556
Area
406249783498321
Diagonal
28504378.032096
Surface area
2437498700989926
Volume
8.1882239800203E+21
Space diagonal
34910590.807017
Perimeter
60466917
Area
1.7591131639574E+14
Altitude
17455295.403508
Surface area
1.7591131639574E+14
Volume
9.6499145035778E+20
Height
9501459.344032