20171681 is an odd 8-digits prime number following 20171680
and preceding 20171682 . In scientific notation, it is written as 2.0171681 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 20171680 positive integers (up to 20171681) that are relatively prime to 20171681.
20171681 has 2 divisors, whose sum is 20171682
The reverse of 20171681 is 18617102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred seventy-one thousand six hundred eighty-one
Scientific notation
2.0171681 × 10^7
Engineering notation
2.0171681 × 10^6
Prime Factorization
20171681
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20171681
Product of the distinct prime numbers
The prime factorization of 20171681 is 20171681.
Since it has a total of 1 prime factors.
2 , 6 , 71 , 76 , 360 , 343 , 1421 , 1276 , 46673 , 8323 , 571983 , 873707 , 8520383 , 535290 , 81545628 , 16812813 , 469626789 , 686389093 , 496650322 , 8925198601
n×2
40343362
n×3
60515043
n×4
80686724
n×5
100858405
n÷2
10085840.5
n÷3
6723893.6666667
n÷3
5042920.25
n÷5
4034336.2
n2
406896714365761
n3
8.2077907221342E+21
n4
1.6556493616165E+29
n5
3.3397230770382E+36
2 √n
4491.2894584963
3 √n
272.21623970069
4 √n
67.017083333254
5 √n
28.903365730805
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20171682
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10085841
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4491.2895698229
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999008511
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20171681 can be divided by 2 positive divisors.
The sum of these divisors (counting 20171681) is 20171682, the average is 10085841.
Base
System
Value
2
Binary
1001100111100101110100001
3
Ternary
1101221211100022
4
Quaternary
1030330232201
5
Quinary
20130443211
6
Senary
2000203225
8
Octal
114745641
10
Decimal
20171681
12
Duodecimal
6909515
16
Hexadecimal
133cba1
20
Vigesimal
661941
36
Base36
c0ckh
md5
331d1afc06ed6c9abf5e9fde02ab611d
sha1
c40e85497b67ee88f20891c113a2065e4238b5ad
sha256
c268f41f512ec61df35f5b5d3bfeeaa74c6f44708561c4adfaf691deb496a90d
sha512
59d3a292bd82122fe323531c04c141c147f750b65c31acf113263a39d94fe0debfee0dc4f07c41a713ababeac6374f7d2c168d4b89e7338f6ac101f4938bb92f
ripemd-160
5d8721389d59e7571b0b7b00b7bfdf73822642b2
Diameter
40343362
Circumference
126742409.68031
Area
1.2783037286213E+15
Volume
3.4380713379813E+22
Surface area
5.1132149144852E+15
Circumference
126742409.68031
Perimeter
80686724
Area
406896714365761
Diagonal
28527064.846064
Surface area
2441380286194566
Volume
8.2077907221342E+21
Space diagonal
34938376.366072
Perimeter
60515043
Area
1.7619144567858E+14
Altitude
17469188.183036
Surface area
1.7619144567858E+14
Volume
9.6729741303019E+20
Height
9509021.6153546