20121258 is an even 8-digits composite number following 20121257
and preceding 20121259 . In scientific notation, it is written as 2.0121258 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 6547520 positive integers (up to 20121258) that are relatively prime to 20121258.
20121258 has 16 divisors, whose sum is 40514400
The reverse of 20121258 is 85212102
Previous prime number is 22507
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred twenty-one thousand two hundred fifty-eight
Scientific notation
2.0121258 × 10^7
Engineering notation
2.0121258 × 10^6
Prime Factorization
2 × 3 × 22507 × 149
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121258
Product of the distinct prime numbers
The prime factorization of 20121258 is 2 × 3 × 22507 × 149.
Since it has a total of 4 prime factors.
8 , 9 , 33 , 3 , 192 , 60 , 6156 , 6159 , 2408 , 11417 , 756170 , 560302 , 2287700 , 6422993 , 56512227 , 86839568 , 586591638 , 30001370 , 8043925105 , 4736390831
n×2
40242516
n×3
60363774
n×4
80485032
n×5
100606290
n÷2
10060629
n÷3
6707086
n÷3
5030314.5
n÷5
4024251.6
n2
404865023502564
n3
8.1463935930712E+21
n4
1.6391568725573E+29
n5
3.2981898335199E+36
2 √n
4485.6725248284
3 √n
271.98923147968
4 √n
66.97516349236
5 √n
28.888901355577
1 , 2 , 3 , 6 , 149 , 298 , 447 , 894 , 22507 , 45014 , 67521 , 135042 , 3353543 , 6707086 , 10060629 , 20121258
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
-20121257
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 20121258 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121258) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000011010101010
3
Ternary
1101212021011210
4
Quaternary
1030300122222
5
Quinary
20122340013
6
Senary
1555133550
8
Octal
114603252
10
Decimal
20121258
12
Duodecimal
68a42b6
16
Hexadecimal
13306aa
20
Vigesimal
65f32i
36
Base36
bz9nu
md5
1d9b02364c0908059d9a158d3636ed23
sha1
24e15843ba26a08514142ef02bc5b8f379730b80
sha256
11aef8d16b6d2037983cd5f38db547f82d6a492d5f57a3218bccc2abb2538963
sha512
ac62065260b32716d0c8255c134bca0003416bcb82471f167075adaec6b24f5bdadc8b56e3d76e949f9afe7494ed76169db7f98a6778ea70c12ba7fa954631e9
ripemd-160
659fdee08fde9d09a6aff12ed100126e94ff23a5
Diameter
40242516
Circumference
126425592.62757
Area
1.2719209835311E+15
Volume
3.4123533686991E+22
Surface area
5.0876839341245E+15
Circumference
126425592.62757
Perimeter
80485032
Area
404865023502564
Diagonal
28455755.955608
Surface area
2429190141015384
Volume
8.1463935930712E+21
Space diagonal
34851041.168202
Perimeter
60363774
Area
1.753116977285E+14
Altitude
17425520.584101
Surface area
1.753116977285E+14
Volume
9.6006169197921E+20
Height
9485251.9852027