20155961 is an odd 8-digits composite number following 20155960
and preceding 20155962 . In scientific notation, it is written as 2.0155961 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 17276532 positive integers (up to 20155961) that are relatively prime to 20155961.
20155961 has 4 divisors, whose sum is 23035392
The reverse of 20155961 is 16955102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred fifty-five thousand nine hundred sixty-one
Scientific notation
2.0155961 × 10^7
Engineering notation
2.0155961 × 10^6
Prime Factorization
7 × 2879423
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20155961
Product of the distinct prime numbers
The prime factorization of 20155961 is 7 × 2879423.
Since it has a total of 2 prime factors.
9 , 1 , 30 , 44 , 978 , 154 , 2480 , 7562 , 55378 , 33089 , 298014 , 393415 , 3852986 , 6722233 , 39758028 , 51884246 , 446940227 , 448772713 , 7067461199 , 1474457370
n×2
40311922
n×3
60467883
n×4
80623844
n×5
100779805
n÷2
10077980.5
n÷3
6718653.6666667
n÷3
5038990.25
n÷5
4031192.2
n2
406262763833521
n3
8.1886164235807E+21
n4
1.6504943327765E+29
n5
3.3267299402164E+36
2 √n
4489.5390632001
3 √n
272.14550767811
4 √n
67.004022738938
5 √n
28.898859387374
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
-20155960
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 20155961 can be divided by 4 positive divisors.
The sum of these divisors (counting 20155961) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111000111000111001
3
Ternary
1101221000210002
4
Quaternary
1030320320321
5
Quinary
20124442321
6
Senary
2000002345
8
Octal
114707071
10
Decimal
20155961
12
Duodecimal
69003b5
16
Hexadecimal
1338e39
20
Vigesimal
65j9i1
36
Base36
c00ft
md5
2e8ae1645ade639caa6d6bd6c1406222
sha1
53b8fc70dfc3c1d9b045c1f02095617d23424f60
sha256
811f83be98fcefdc696cc408ad4759ef4cce55bb33c8a430af41d79ecca57d68
sha512
9025052c89f9764606122f3366ce9e27883d94072334927af3f7924edef09d76ceaa960ecef723b7628630fe16b5fbb1971e37db217df504bd1e5bc3758e22b8
ripemd-160
845e111b8b85326948adfd19e8b811487b6a7043
Diameter
40311922
Circumference
126643638.00728
Area
1.2763121142865E+15
Volume
3.4300396265848E+22
Surface area
5.1052484571459E+15
Circumference
126643638.00728
Perimeter
80623844
Area
406262763833521
Diagonal
28504833.408863
Surface area
2437576583001126
Volume
8.1886164235807E+21
Space diagonal
34911148.527377
Perimeter
60467883
Area
1.7591693704575E+14
Altitude
17455574.263688
Surface area
1.7591693704575E+14
Volume
9.650377002749E+20
Height
9501611.1362877