20187961 is an odd 8-digits prime number following 20187960
and preceding 20187962 . In scientific notation, it is written as 2.0187961 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 20187960 positive integers (up to 20187961) that are relatively prime to 20187961.
20187961 has 2 divisors, whose sum is 20187962
The reverse of 20187961 is 16978102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty million one hundred eighty-seven thousand nine hundred sixty-one
Scientific notation
2.0187961 × 10^7
Engineering notation
2.0187961 × 10^6
Prime Factorization
20187961
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20187961
Product of the distinct prime numbers
The prime factorization of 20187961 is 20187961.
Since it has a total of 1 prime factors.
9 , 5 , 47 , 22 , 874 , 98 , 4419 , 3712 , 25500 , 75371 , 248301 , 981415 , 1519161 , 5301202 , 12534327 , 414427 , 832564709 , 60934412 , 2065203444 , 2938456547
n×2
40375922
n×3
60563883
n×4
80751844
n×5
100939805
n÷2
10093980.5
n÷3
6729320.3333333
n÷3
5046990.25
n÷5
4037592.2
n2
407553769337521
n3
8.2276796007889E+21
n4
1.6610007490122E+29
n5
3.3532218342029E+36
2 √n
4493.1014900623
3 √n
272.28945271466
4 √n
67.030601146508
5 √n
28.908029645146
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20187962
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10093981
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4493.101601344
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999009311
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20187961 can be divided by 2 positive divisors.
The sum of these divisors (counting 20187961) is 20187962, the average is 10093981.
Base
System
Value
2
Binary
1001101000000101100111001
3
Ternary
1101222122200021
4
Quaternary
1031000230321
5
Quinary
20132003321
6
Senary
2000410441
8
Octal
115005471
10
Decimal
20187961
12
Duodecimal
6916a21
16
Hexadecimal
1340b39
20
Vigesimal
6639i1
36
Base36
c0p4p
md5
4552ed0b062ea633539ffc65e683b9b9
sha1
5b95285291d2d0c247483dd00a7fbecdb26ed2a9
sha256
07b231832e049bcf638d8c26851388a53e8cb755be428f78c394dc92c7730721
sha512
6e6b47432f965ab96f6014f092322bdb9c3d60ee72e267c611771a772afb2214577df6897e9347f238e308dab7b4fbd589d8f326cbed0a77ed6c2297d1587f1e
ripemd-160
61b2d347ba86389090da9b570f720f6663d71a9f
Diameter
40375922
Circumference
126844699.93711
Area
1.2803679276936E+15
Volume
3.4464023719905E+22
Surface area
5.1214717107743E+15
Circumference
126844699.93711
Perimeter
80751844
Area
407553769337521
Diagonal
28550088.242859
Surface area
2445322616025126
Volume
8.2276796007889E+21
Space diagonal
34966574.153219
Perimeter
60563883
Area
1.764759588272E+14
Altitude
17483287.076609
Surface area
1.764759588272E+14
Volume
9.6964133985801E+20
Height
9516696.080953