20121392 is an even 8-digits composite number following 20121391
and preceding 20121393 . In scientific notation, it is written as 2.0121392 × 10^7.
The sum of its digits is 20. It has a total of 5 prime factors and 10 positive divisors.
There are 10060688 positive integers (up to 20121392) that are relatively prime to 20121392.
20121392 has 10 divisors, whose sum is 38985228
The reverse of 20121392 is 29312102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred twenty-one thousand three hundred ninety-two
Scientific notation
2.0121392 × 10^7
Engineering notation
2.0121392 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 1257587
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2515174
Product of the distinct prime numbers
The prime factorization of 20121392 is 2 × 2 × 2 × 2 × 1257587.
Since it has a total of 5 prime factors.
8 , 9 , 76 , 88 , 434 , 727 , 3692 , 8528 , 33656 , 14439 , 324343 , 39241 , 4752682 , 7717183 , 48222778 , 60343476 , 684854385 , 933562744 , 2533316667 , 513238961
n×2
40242784
n×3
60364176
n×4
80485568
n×5
100606960
n÷2
10060696
n÷3
6707130.6666667
n÷3
5030348
n÷5
4024278.4
n2
404870416017664
n3
8.1465563498945E+21
n4
1.6392005376632E+29
n5
3.2982996584931E+36
2 √n
4485.6874612483
3 √n
271.98983526028
4 √n
66.975274999423
5 √n
28.888939833315
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20121391
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20121392 can be divided by 10 positive divisors.
The sum of these divisors (counting 20121392) is 1, the average is 0.1.
Base
System
Value
2
Binary
1001100110000011100110000
3
Ternary
1101212021100202
4
Quaternary
1030300130300
5
Quinary
20122341032
6
Senary
1555134332
8
Octal
114603460
10
Decimal
20121392
12
Duodecimal
68a43a8
16
Hexadecimal
1330730
20
Vigesimal
65f39c
36
Base36
bz9rk
md5
ecd2f99440ebe3000f6c70d74019b3ff
sha1
bdfd7a980bcce8aeac9d4cb3dee3d06c973c82d6
sha256
dcdb47136873e71ea0e8a395276c60e4058dc1b41ab6833704b15cb45331ee46
sha512
43ebe2d1b4adea3229bdf6866daaf4e0adda2c2ef43827679ab09896ca6bc42dea86f912e64c1ad569b5c67a19eecfa99254d4882e1ea4aa4882f9da40033c51
ripemd-160
f90a1fc54eaf4b343f92677c789eea8722a39038
Diameter
40242784
Circumference
126426434.5744
Area
1.2719379246169E+15
Volume
3.4124215441178E+22
Surface area
5.0877516984677E+15
Circumference
126426434.5744
Perimeter
80485568
Area
404870416017664
Diagonal
28455945.460225
Surface area
2429222496105984
Volume
8.1465563498945E+21
Space diagonal
34851273.26301
Perimeter
60364176
Area
1.7531403275604E+14
Altitude
17425636.631505
Surface area
1.7531403275604E+14
Volume
9.6008087305479E+20
Height
9485315.1534085