661252913 is an odd 9-digits prime number following 661252912
and preceding 661252914 . In scientific notation, it is written as 6.61252913 × 10^8.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 661252912 positive integers (up to 661252913) that are relatively prime to 661252913.
661252913 has 2 divisors, whose sum is 661252914
The reverse of 661252913 is 319252166
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 9
Sum of Digits 35
Digital Root 8
Name
six hundred sixty-one million two hundred fifty-two thousand nine hundred thirteen
Scientific notation
6.61252913 × 10^8
Engineering notation
6.61252913 × 10^6
Prime Factorization
661252913
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
661252913
Product of the distinct prime numbers
The prime factorization of 661252913 is 661252913.
Since it has a total of 1 prime factors.
5 , 4 , 84 , 21 , 861 , 156 , 5780 , 341 , 66546 , 87783 , 558315 , 595818 , 4333220 , 4930789 , 42526971 , 11078790 , 430197596 , 110968741 , 803012016 , 909477722
n×2
1322505826
n×3
1983758739
n×4
2645011652
n×5
3306264565
n÷2
330626456.5
n÷3
220417637.66667
n÷3
165313228.25
n÷5
132250582.6
n2
437255414950985569
n3
2.8913641686136E+26
n4
1.9119229790396E+35
n5
1.2642646393216E+44
2 √n
25714.838381759
3 √n
871.20936009642
4 √n
160.35846838181
5 √n
58.086274068868
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
661252914
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
330626457
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
25714.838401203
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999969754
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 661252913 can be divided by 2 positive divisors.
The sum of these divisors (counting 661252913) is 661252914, the average is 330626457.
Base
System
Value
2
Binary
100111011010011110101100110001
3
Ternary
1201002021010110122
4
Quaternary
213122132230301
5
Quinary
2323240043123
6
Senary
145340540025
8
Octal
4732365461
10
Decimal
661252913
12
Duodecimal
165551615
16
Hexadecimal
2769eb31
20
Vigesimal
a6cgc5d
36
Base36
axoy0h
md5
566c2502666a93367c6c1e86a6e8d5a2
sha1
73b485af38c46a258d6f825ded5d419fc2b2dfae
sha256
dd095dc131deda9578a11dda5b22fff84bc064247b8bf163d3c9fed0710798bf
sha512
3491e42e79890bc3ab20c832b9bf66385103c7479a4c6f46b2abab911d20e131cb743938eaa6514fe7a779476573c85bcf68478b2cda4424c3a27e363d5c6e97
ripemd-160
ebb1b8bafed23038bc5e09277e35615424adcc53
Diameter
1322505826
Circumference
4154774587.2913
Area
1.3736783993524E+18
Volume
1.2111317907959E+27
Surface area
5.4947135974095E+18
Circumference
4154774587.2913
Perimeter
2645011652
Area
437255414950985569
Diagonal
935152837.72332
Surface area
2623532489705913414
Volume
2.8913641686136E+26
Space diagonal
1145323641.9689
Perimeter
1983758739
Area
1.8933714864493E+17
Altitude
572661820.98446
Surface area
1.8933714864493E+17
Volume
3.4075053508442E+25
Height
311717612.57444