20121378 is an even 8-digits composite number following 20121377
and preceding 20121379 . In scientific notation, it is written as 2.0121378 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 6689600 positive integers (up to 20121378) that are relatively prime to 20121378.
20121378 has 16 divisors, whose sum is 40347936
The reverse of 20121378 is 87312102
Previous prime number is 401
Is Prime? no
Number parity even
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty million one hundred twenty-one thousand three hundred seventy-eight
Scientific notation
2.0121378 × 10^7
Engineering notation
2.0121378 × 10^6
Prime Factorization
2 × 3 × 401 × 8363
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20121378
Product of the distinct prime numbers
The prime factorization of 20121378 is 2 × 3 × 401 × 8363.
Since it has a total of 4 prime factors.
5 , 4 , 28 , 60 , 888 , 644 , 7597 , 6827 , 37711 , 27634 , 432040 , 349702 , 7960343 , 5150652 , 26471927 , 35920632 , 980797847 , 119329400 , 3877104638 , 8462252796
n×2
40242756
n×3
60364134
n×4
80485512
n×5
100606890
n÷2
10060689
n÷3
6707126
n÷3
5030344.5
n÷5
4024275.6
n2
404869852618884
n3
8.1465393453489E+21
n4
1.6391959755964E+29
n5
3.2982881841053E+36
2 √n
4485.6859007291
3 √n
271.98977217885
4 √n
66.975263349457
5 √n
28.888935813263
1 , 2 , 3 , 6 , 401 , 802 , 1203 , 2406 , 8363 , 16726 , 25089 , 50178 , 3353563 , 6707126 , 10060689 , 20121378
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
-20121377
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 20121378 can be divided by 16 positive divisors.
The sum of these divisors (counting 20121378) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100110000011100100010
3
Ternary
1101212021100020
4
Quaternary
1030300130202
5
Quinary
20122341003
6
Senary
1555134310
8
Octal
114603442
10
Decimal
20121378
12
Duodecimal
68a4396
16
Hexadecimal
1330722
20
Vigesimal
65f38i
36
Base36
bz9r6
md5
44a2d9366003152306b90f0c37423ccb
sha1
d9cda5bda68c2aedb401c985f4110416f2e3d8b7
sha256
08253f517c3ce1079afffe1f6883ba148ba4acbaab11ca522c78d9ce71d5ea0c
sha512
9fb71c14a98d515561e69bcbdf55f40267fc91b22c5842569d905a7f025644b125ac9ce2aa4ff584e6b304df2dec7f2f65bad808bb7b20bb0ff2defd347df809
ripemd-160
e0684e18f2bf3335ed840b2752e32acdc2c6d296
Diameter
40242756
Circumference
126426346.60981
Area
1.2719361546475E+15
Volume
3.4124144212704E+22
Surface area
5.0877446185899E+15
Circumference
126426346.60981
Perimeter
80485512
Area
404869852618884
Diagonal
28455925.661236
Surface area
2429219115713304
Volume
8.1465393453489E+21
Space diagonal
34851249.014299
Perimeter
60364134
Area
1.7531378879721E+14
Altitude
17425624.507149
Surface area
1.7531378879721E+14
Volume
9.6007886904987E+20
Height
9485308.5537452