661252907 is an odd 9-digits composite number following 661252906
and preceding 661252908 . In scientific notation, it is written as 6.61252907 × 10^8.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 559023552 positive integers (up to 661252907) that are relatively prime to 661252907.
661252907 has 8 divisors, whose sum is 766070496
The reverse of 661252907 is 709252166
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 38
Digital Root 2
Name
six hundred sixty-one million two hundred fifty-two thousand nine hundred seven
Scientific notation
6.61252907 × 10^8
Engineering notation
6.61252907 × 10^6
Prime Factorization
7 × 73 × 1294037
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
661252907
Product of the distinct prime numbers
The prime factorization of 661252907 is 7 × 73 × 1294037.
Since it has a total of 3 prime factors.
2 , 9 , 13 , 68 , 233 , 22 , 7424 , 2507 , 10775 , 53626 , 392251 , 279770 , 4203372 , 3853747 , 29991310 , 41853399 , 299095764 , 240323387 , 8588868828 , 2523475967
n×2
1322505814
n×3
1983758721
n×4
2645011628
n×5
3306264535
n÷2
330626453.5
n÷3
220417635.66667
n÷3
165313226.75
n÷5
132250581.4
n2
437255407015950649
n3
2.8913640899077E+26
n4
1.9119229096468E+35
n5
1.2642645819639E+44
2 √n
25714.838265095
3 √n
871.20935746139
4 √n
160.35846801805
5 √n
58.086273963456
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-661252906
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 661252907 can be divided by 8 positive divisors.
The sum of these divisors (counting 661252907) is 1, the average is 0.125.
Base
System
Value
2
Binary
100111011010011110101100101011
3
Ternary
1201002021010110102
4
Quaternary
213122132230223
5
Quinary
2323240043112
6
Senary
145340540015
8
Octal
4732365453
10
Decimal
661252907
12
Duodecimal
16555160b
16
Hexadecimal
2769eb2b
20
Vigesimal
a6cgc57
36
Base36
axoy0b
md5
de2c1cf94ea7183f8434de559532a832
sha1
45abfffd8250070ad2d4bcba32cd5946ba400d48
sha256
5336aca76a8ba69bccb523a81531eeb865f5bc8079fe11146094e9747efff9d4
sha512
7c78a105c48f73a409143fa834e54d1efdf6646c096c4d2ee0f92f6321431d1588098aa2d987b0e5acd43e5e573e9f9e4f6d4ddf522091380856110f04700ccd
ripemd-160
4314c04e9c58641bba615b84b9d5ba5324a14e76
Diameter
1322505814
Circumference
4154774549.5922
Area
1.3736783744237E+18
Volume
1.2111317578276E+27
Surface area
5.4947134976949E+18
Circumference
4154774549.5922
Perimeter
2645011628
Area
437255407015950649
Diagonal
935152829.23803
Surface area
2623532442095703894
Volume
2.8913640899077E+26
Space diagonal
1145323631.5766
Perimeter
1983758721
Area
1.8933714520896E+17
Altitude
572661815.78831
Surface area
1.8933714520896E+17
Volume
3.4075052580883E+25
Height
311717609.74601