261640157 is an odd 9-digits composite number following 261640156
and preceding 261640158 . In scientific notation, it is written as 2.61640157 × 10^8.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 250264476 positive integers (up to 261640157) that are relatively prime to 261640157.
261640157 has 4 divisors, whose sum is 273015840
The reverse of 261640157 is 751046162
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 32
Digital Root 5
Name
two hundred sixty-one million six hundred forty thousand one hundred fifty-seven
Scientific notation
2.61640157 × 10^8
Engineering notation
2.61640157 × 10^6
Prime Factorization
23 × 11375659
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
261640157
Product of the distinct prime numbers
The prime factorization of 261640157 is 23 × 11375659.
Since it has a total of 2 prime factors.
8 , 5 , 3 , 53 , 705 , 984 , 2935 , 9700 , 56102 , 83191 , 688238 , 287761 , 8233081 , 4202560 , 9000127 , 79160241 , 910115166 , 653825457 , 239179250 , 6408107754
n×2
523280314
n×3
784920471
n×4
1046560628
n×5
1308200785
n÷2
130820078.5
n÷3
87213385.666667
n÷3
65410039.25
n÷5
52328031.4
n2
68455571754984649
n3
1.7910726541499E+25
n4
4.6861653043019E+33
n5
1.2260890259455E+42
2 √n
16175.294649557
3 √n
639.58970854332
4 √n
127.18213180143
5 √n
48.254840028404
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
-261640156
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 261640157 can be divided by 4 positive divisors.
The sum of these divisors (counting 261640157) is 1, the average is 0.25.
Base
System
Value
2
Binary
1111100110000100111111011101
3
Ternary
200020022200211012
4
Quaternary
33212010333131
5
Quinary
1013434441112
6
Senary
41543505005
8
Octal
1746047735
10
Decimal
261640157
12
Duodecimal
73758165
16
Hexadecimal
f984fdd
20
Vigesimal
41f507h
36
Base36
4bruu5
md5
e02325c5f79e2b60edd2ff903efd7600
sha1
4207a0611f427c3b2d8e7097f06004441b8736b2
sha256
31e2c1493169d8e26cdaf4d68b67e592c4fdfabe89bd244f67115ffac3ea044f
sha512
5b95a0a4c7acafe8a5f83d85db6a654352d3aaa64fd2e15970696db6d185c99f12e7d3efe5562b2f834a039abd5d7e1ce9f3ff6f71f73c428b6c149078751942
ripemd-160
ebcb7f23d8097b0571296176d86a0b8fe23338a0
Diameter
523280314
Circumference
1643933590.2306
Area
2.1505952132275E+17
Volume
7.5024275897638E+25
Surface area
8.6023808529099E+17
Circumference
1643933590.2306
Perimeter
1046560628
Area
68455571754984649
Diagonal
370015058.49083
Surface area
410733430529907894
Volume
1.7910726541499E+25
Space diagonal
453174045.2243
Perimeter
784920471
Area
2.9642132085203E+16
Altitude
226587022.61215
Surface area
2.9642132085203E+16
Volume
2.1107993655786E+24
Height
123338352.83028