20121678 is an even 8-digits composite number following 20121677
and preceding 20121679 . In scientific notation, it is written as 2.0121678 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 6550992 positive integers (up to 20121678) that are relatively prime to 20121678.
20121678 has 16 divisors, whose sum is 34317360
The reverse of 20121678 is 87612102
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million one hundred twenty-one thousand six hundred seventy-eight
Scientific notation
2.0121678 × 10^7
Engineering notation
2.0121678 × 10^6
Prime Factorization
2 × 9 × 43 × 25997
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121678
Product of the distinct prime numbers
The prime factorization of 20121678 is 2 × 9 × 43 × 25997.
Since it has a total of 4 prime factors.
8 , 9 , 23 , 93 , 694 , 309 , 9344 , 8452 , 94767 , 22016 , 78003 , 462043 , 6144261 , 436280 , 85328853 , 74060076 , 590908506 , 52788478 , 2674373220 , 9917258976
n×2
40243356
n×3
60365034
n×4
80486712
n×5
100608390
n÷2
10060839
n÷3
6707226
n÷3
5030419.5
n÷5
4024335.6
n2
404881925535684
n3
8.146903733649E+21
n4
1.6392937362548E+29
n5
3.2985340708337E+36
2 √n
4485.7193403065
3 √n
271.99112391739
4 √n
66.975512990245
5 √n
28.889021956757
1 , 2 , 9 , 18 , 43 , 86 , 387 , 774 , 25997 , 51994 , 233973 , 467946 , 1117871 , 2235742 , 10060839 , 20121678
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
-20121677
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 20121678 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121678) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000100001001110
3
Ternary
1101212021202100
4
Quaternary
1030300201032
5
Quinary
20122343203
6
Senary
1555135530
8
Octal
114604116
10
Decimal
20121678
12
Duodecimal
68a45a6
16
Hexadecimal
133084e
20
Vigesimal
65f43i
36
Base36
bz9zi
md5
be88ed378c80198cc91c13c63d57c0e9
sha1
b932c5848690a03d56db4bfff5a37ad55efe8536
sha256
11f93305670b6070d803713195cf1219d66414af648ac909861f4a216251aa57
sha512
6bce9faaf22731f9489ea7b3887bf46ff399348875957aadc013dd86f9900aa5fa434cf5d0a0af433f2159302abc881a2d6b78e3c92ede707c04434856849e38
ripemd-160
f10ff7b6cba313949a302f159ad2350276bb6449
Diameter
40243356
Circumference
126428231.5654
Area
1.2719740828342E+15
Volume
3.4125670558847E+22
Surface area
5.0878963313368E+15
Circumference
126428231.5654
Perimeter
80486712
Area
404881925535684
Diagonal
28456349.925304
Surface area
2429291553214104
Volume
8.146903733649E+21
Space diagonal
34851768.629541
Perimeter
60365034
Area
1.7531901652353E+14
Altitude
17425884.31477
Surface area
1.7531901652353E+14
Volume
9.6012181262287E+20
Height
9485449.9751014