1661540231 is an odd 10-digits composite number following 1661540230
and preceding 1661540232 . In scientific notation, it is written as 1.661540231 × 10^9.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 1515237984 positive integers (up to 1661540231) that are relatively prime to 1661540231.
1661540231 has 12 divisors, whose sum is 1820874888
The reverse of 1661540231 is 1320451661
Previous prime number is 83
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 29
Digital Root 2
Name
one billion six hundred sixty-one million five hundred forty thousand two hundred thirty-one
Scientific notation
1.661540231 × 10^9
Engineering notation
1.661540231 × 10^9
Prime Factorization
13 × 13 × 83 × 118453
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
127810787
Product of the distinct prime numbers
The prime factorization of 1661540231 is 13 × 13 × 83 × 118453.
Since it has a total of 4 prime factors.
5 , 6 , 93 , 87 , 97 , 98 , 9378 , 3237 , 95432 , 93243 , 153556 , 527637 , 8688195 , 3950091 , 52856314 , 45941050 , 887153204 , 119865713 , 2583182073 , 65410014
n×2
3323080462
n×3
4984620693
n×4
6646160924
n×5
8307701155
n÷2
830770115.5
n÷3
553846743.66667
n÷3
415385057.75
n÷5
332308046.2
n2
2760715939231533361
n3
4.5870405993961E+27
n4
7.621552497127E+36
n5
1.2663516096655E+46
2 √n
40761.994934007
3 √n
1184.4142406976
4 √n
201.89600029225
5 √n
69.839668979737
1 , 13 , 83 , 169 , 1079 , 14027 , 118453 , 1539889 , 9831599 , 20018557 , 127810787 , 1661540231
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
-1661540230
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 1661540231 can be divided by 12 positive divisors.
The sum of these divisors (counting 1661540231) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1100011000010010001011110000111
3
Ternary
11021210110222201002
4
Quaternary
1203002101132013
5
Quinary
11400323241411
6
Senary
432512323515
8
Octal
14302213607
10
Decimal
1661540231
12
Duodecimal
3a454359b
16
Hexadecimal
63091787
20
Vigesimal
15j4cabb
36
Base36
rh8knb
md5
dd69874ab422d8e78edac9caa957d49f
sha1
18b7a8eefca6af045dc90d3b98cb915f0152b07e
sha256
fe1e1bf5401114b23871194d9bc245fd4d2ce70e3ab2e0a3b3a6a515cc74503d
sha512
1567003f39b2bc583ca8a9d29aef4c5528a8c4e5d05aff4a326d8c2202fbe54501ed2757c745d9979a6209708adb9f848af0b92ae58506d24f822e61cd58c19a
ripemd-160
7341d1a4ec21a52baab96c528ba6c11b2ea468cd
Diameter
3323080462
Circumference
10439765166.707
Area
8.673044913338E+18
Volume
1.9214150731708E+28
Surface area
3.4692179653352E+19
Circumference
10439765166.707
Perimeter
6646160924
Area
2760715939231533361
Diagonal
2349772729.1087
Surface area
1.6564295635389E+19
Volume
4.5870405993961E+27
Space diagonal
2877872098.9117
Perimeter
4984620693
Area
1.1954250680036E+18
Altitude
1438936049.4559
Surface area
1.1954250680036E+18
Volume
5.4058791890184E+26
Height
783257576.36958