20171389 is an odd 8-digits composite number following 20171388
and preceding 20171390 . In scientific notation, it is written as 2.0171389 × 10^7.
The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors.
There are 17199000 positive integers (up to 20171389) that are relatively prime to 20171389.
20171389 has 12 divisors, whose sum is 23587968
The reverse of 20171389 is 98317102
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred seventy-one thousand three hundred eighty-nine
Scientific notation
2.0171389 × 10^7
Engineering notation
2.0171389 × 10^6
Prime Factorization
7 × 7 × 211 × 1951
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2881627
Product of the distinct prime numbers
The prime factorization of 20171389 is 7 × 7 × 211 × 1951.
Since it has a total of 4 prime factors.
8 , 5 , 23 , 60 , 284 , 498 , 8438 , 2336 , 51237 , 49242 , 107978 , 72062 , 206008 , 5867683 , 4580351 , 23521893 , 104749897 , 494694796 , 2756295473 , 9894628384
n×2
40342778
n×3
60514167
n×4
80685556
n×5
100856945
n÷2
10085694.5
n÷3
6723796.3333333
n÷3
5042847.25
n÷5
4034277.8
n2
406884934189321
n3
8.2074342857722E+21
n4
1.6555534967025E+29
n5
3.3394813592296E+36
2 √n
4491.2569510105
3 √n
272.2149261839
4 √n
67.016840801477
5 √n
28.903282050802
1 , 7 , 49 , 211 , 1477 , 1951 , 10339 , 13657 , 95599 , 411661 , 2881627 , 20171389
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20171388
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20171389 can be divided by 12 positive divisors.
The sum of these divisors (counting 20171389) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100111100101001111101
3
Ternary
1101221210221111
4
Quaternary
1030330221331
5
Quinary
20130441024
6
Senary
2000202021
8
Octal
114745175
10
Decimal
20171389
12
Duodecimal
6909311
16
Hexadecimal
133ca7d
20
Vigesimal
661899
36
Base36
c0ccd
md5
1e482fb0a7c0d63f742485baa33e974a
sha1
3435581d2e66932fb9c89d06114a326cbdb4555c
sha256
adaea4a45a99615f5b98131ea793f20f2186a58a9a3022f628b3d877828e2c75
sha512
0d4803784ca3c241f0dc46b3b9095d5f5ca89423a86306a29f87b351483ccce9c439598e60be2fcaf87ed5af2cc7be6544d90db784f56a0f7050c42ea87aaa8f
ripemd-160
2b9e732e7c0c85021c84cf8202630fe7ab5f52a8
Diameter
40342778
Circumference
126740574.9902
Area
1.2782667201055E+15
Volume
3.4379220342671E+22
Surface area
5.1130668804221E+15
Circumference
126740574.9902
Perimeter
80685556
Area
406884934189321
Diagonal
28526651.895703
Surface area
2441309605135926
Volume
8.2074342857722E+21
Space diagonal
34937870.607236
Perimeter
60514167
Area
1.7618634471256E+14
Altitude
17468935.303618
Surface area
1.7618634471256E+14
Volume
9.6725540660208E+20
Height
9508883.9652345