20155251 is an odd 8-digits composite number following 20155250
and preceding 20155252 . In scientific notation, it is written as 2.0155251 × 10^7.
The sum of its digits is 21. It has a total of 2 prime factors and 4 positive divisors.
There are 12646400 positive integers (up to 20155251) that are relatively prime to 20155251.
20155251 has 4 divisors, whose sum is 20550504
The reverse of 20155251 is 15255102
Previous prime number is 51
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred fifty-five thousand two hundred fifty-one
Scientific notation
2.0155251 × 10^7
Engineering notation
2.0155251 × 10^6
Prime Factorization
51 × 395201
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20155251
Product of the distinct prime numbers
The prime factorization of 20155251 is 51 × 395201.
Since it has a total of 2 prime factors.
10 , 2 , 36 , 81 , 590 , 383 , 3014 , 5087 , 72282 , 63303 , 985727 , 884637 , 1942299 , 1975449 , 99774888 , 56232628 , 642369727 , 791498054 , 5862162218 , 7397864643
n×2
40310502
n×3
60465753
n×4
80621004
n×5
100776255
n÷2
10077625.5
n÷3
6718417
n÷3
5038812.75
n÷5
4031050.2
n2
406234142873001
n3
8.1877511143752E+21
n4
1.6502617883576E+29
n5
3.3261440560057E+36
2 √n
4489.4599897983
3 √n
272.14231217052
4 √n
67.003432671754
5 √n
28.898655790242
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20155250
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20155251 can be divided by 4 positive divisors.
The sum of these divisors (counting 20155251) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111000101101110011
3
Ternary
1101220222210210
4
Quaternary
1030320231303
5
Quinary
20124432001
6
Senary
1555555203
8
Octal
114705563
10
Decimal
20155251
12
Duodecimal
68bbb03
16
Hexadecimal
1338b73
20
Vigesimal
65j82b
36
Base36
bzzw3
md5
4ccb36c564c8ee4873dae323d3477695
sha1
84a63fcf333570d66beb4eb19a51e69786ccc77d
sha256
2179ae93f00dbdb44b2a8b5f0ece370cf48fd6cf84927dc99f42aeb59478fadf
sha512
76b7990ed09bc0815f4c9cace384123ea6b7102d33777a5de984f9870e3632e7ad9f3c46343cbc9dc69d87a7090717f4cc8a9fc8a15eb160a61848f4053e10b1
ripemd-160
36459b0d0edd49b77721fe8261b834beae603cae
Diameter
40310502
Circumference
126639176.94572
Area
1.2762221988872E+15
Volume
3.4296771667124E+22
Surface area
5.1048887955487E+15
Circumference
126639176.94572
Perimeter
80621004
Area
406234142873001
Diagonal
28503829.317234
Surface area
2437404857238006
Volume
8.1877511143752E+21
Space diagonal
34909918.771303
Perimeter
60465753
Area
1.7590454380631E+14
Altitude
17454959.385652
Surface area
1.7590454380631E+14
Volume
9.6493572260707E+20
Height
9501276.439078