20121537 is an odd 8-digits composite number following 20121536
and preceding 20121538 . In scientific notation, it is written as 2.0121537 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 13011024 positive integers (up to 20121537) that are relatively prime to 20121537.
20121537 has 16 divisors, whose sum is 27648000
The reverse of 20121537 is 73512102
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred twenty-one thousand five hundred thirty-seven
Scientific notation
2.0121537 × 10^7
Engineering notation
2.0121537 × 10^6
Prime Factorization
3 × 59 × 79 × 1439
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121537
Product of the distinct prime numbers
The prime factorization of 20121537 is 3 × 59 × 79 × 1439.
Since it has a total of 4 prime factors.
9 , 1 , 40 , 11 , 696 , 630 , 7684 , 7273 , 99372 , 61910 , 219662 , 603055 , 1016170 , 9793371 , 30011139 , 95515180 , 194976935 , 454506632 , 6460968868 , 7207258355
n×2
40243074
n×3
60364611
n×4
80486148
n×5
100607685
n÷2
10060768.5
n÷3
6707179
n÷3
5030384.25
n÷5
4024307.4
n2
404876251242369
n3
8.1467324697946E+21
n4
1.6392477882007E+29
n5
3.2984185022449E+36
2 √n
4485.7036237362
3 √n
271.99048860195
4 √n
66.975395659423
5 √n
28.888981469442
1 , 3 , 59 , 79 , 177 , 237 , 1439 , 4317 , 4661 , 13983 , 84901 , 113681 , 254703 , 341043 , 6707179 , 20121537
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
-20121536
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 20121537 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121537) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000011111000001
3
Ternary
1101212021120010
4
Quaternary
1030300133001
5
Quinary
20122342122
6
Senary
1555135133
8
Octal
114603701
10
Decimal
20121537
12
Duodecimal
68a44a9
16
Hexadecimal
13307c1
20
Vigesimal
65f3gh
36
Base36
bz9vl
md5
51bfc5fa6d55610798524088ae449ee0
sha1
08b527348bf3ad5e52fae91d72cab1f9d6735b38
sha256
dcc8fd3a1d780e7190ff5525422c37d2763432166ec3c0c96feb48f2328e55ee
sha512
343a721fbb331925710260c5429b8c1dee676342042b88ebef630e317fccecddad76ae0444c204aef8367e425bd24c92b6241eb19b891cb3b59c4ad89ee2ac3e
ripemd-160
6c5491bc392471961b058e111ebd7ee130343f6e
Diameter
40243074
Circumference
126427345.63627
Area
1.271956256516E+15
Volume
3.4124953170491E+22
Surface area
5.087825026064E+15
Circumference
126427345.63627
Perimeter
80486148
Area
404876251242369
Diagonal
28456150.521192
Surface area
2429257507454214
Volume
8.1467324697946E+21
Space diagonal
34851524.410377
Perimeter
60364611
Area
1.7531655948245E+14
Altitude
17425762.205189
Surface area
1.7531655948245E+14
Volume
9.6010162898407E+20
Height
9485383.507064