20121557 is an odd 8-digits composite number following 20121556
and preceding 20121558 . In scientific notation, it is written as 2.0121557 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 18865152 positive integers (up to 20121557) that are relatively prime to 20121557.
20121557 has 8 divisors, whose sum is 21387096
The reverse of 20121557 is 75512102
Previous prime number is 277
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred twenty-one thousand five hundred fifty-seven
Scientific notation
2.0121557 × 10^7
Engineering notation
2.0121557 × 10^6
Prime Factorization
17 × 277 × 4273
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20121557
Product of the distinct prime numbers
The prime factorization of 20121557 is 17 × 277 × 4273.
Since it has a total of 3 prime factors.
3 , 6 , 31 , 81 , 245 , 931 , 6806 , 8108 , 3035 , 71573 , 195091 , 833499 , 4843480 , 1673529 , 44313552 , 84366302 , 916746377 , 914606227 , 8451398392 , 6056963210
n×2
40243114
n×3
60364671
n×4
80486228
n×5
100607785
n÷2
10060778.5
n÷3
6707185.6666667
n÷3
5030389.25
n÷5
4024311.4
n2
404877056104249
n3
8.1467567623938E+21
n4
1.6392543055964E+29
n5
3.2984348947554E+36
2 √n
4485.7058530403
3 √n
271.9905787178
4 √n
66.97541230213
5 √n
28.888987212338
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121556
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121557 can be divided by 8 positive divisors.
The sum of these divisors (counting 20121557) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000011111010101
3
Ternary
1101212021120212
4
Quaternary
1030300133111
5
Quinary
20122342212
6
Senary
1555135205
8
Octal
114603725
10
Decimal
20121557
12
Duodecimal
68a4505
16
Hexadecimal
13307d5
20
Vigesimal
65f3hh
36
Base36
bz9w5
md5
c4ee95edd9e8f5c5adf7a972e6650736
sha1
b82422223404daf026ffc9ba4b9e4956e92c5d4f
sha256
24ef3044e1081c6e9b6896edd5e0f75575928e8110ee225c7a480abb9c5d9a2d
sha512
b8c43ab74c5b25f6fa2143b4007e94d7acc30cc50a24061c921288ce88ae78927edbf1ec450beae5f1f83e73c1a3a5a39068bb216181337bac64ea27a7baf9c8
ripemd-160
52f0f320d289d083c8bf121af7ad912360fb6883
Diameter
40243114
Circumference
126427471.29998
Area
1.2719587850642E+15
Volume
3.4125054927093E+22
Surface area
5.0878351402567E+15
Circumference
126427471.29998
Perimeter
80486228
Area
404877056104249
Diagonal
28456178.805463
Surface area
2429262336625494
Volume
8.1467567623938E+21
Space diagonal
34851559.051393
Perimeter
60364671
Area
1.7531690799787E+14
Altitude
17425779.525697
Surface area
1.7531690799787E+14
Volume
9.6010449189434E+20
Height
9485392.9351544