161252913 is an odd 9-digits composite number following 161252912
and preceding 161252914 . In scientific notation, it is written as 1.61252913 × 10^8.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 107501940 positive integers (up to 161252913) that are relatively prime to 161252913.
161252913 has 4 divisors, whose sum is 215003888
The reverse of 161252913 is 319252161
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 30
Digital Root 3
Name
one hundred sixty-one million two hundred fifty-two thousand nine hundred thirteen
Scientific notation
1.61252913 × 10^8
Engineering notation
1.61252913 × 10^6
Prime Factorization
3 × 53750971
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
161252913
Product of the distinct prime numbers
The prime factorization of 161252913 is 3 × 53750971.
Since it has a total of 2 prime factors.
4 , 4 , 70 , 92 , 282 , 133 , 7841 , 1633 , 27375 , 17076 , 901119 , 111142 , 3934232 , 5794886 , 36236537 , 14750677 , 965905576 , 92096928 , 2464048581 , 884987193
n×2
322505826
n×3
483758739
n×4
645011652
n×5
806264565
n÷2
80626456.5
n÷3
53750971
n÷3
40313228.25
n÷5
32250582.6
n2
26002501950985569
n3
4.1929791848846E+24
n4
6.7613010771101E+32
n5
1.090279494354E+41
2 √n
12698.539797945
3 √n
544.29689428256
4 √n
112.68779791062
5 √n
43.802763794322
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
-161252912
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 161252913 can be divided by 4 positive divisors.
The sum of these divisors (counting 161252913) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111001000011000110001
3
Ternary
102020102111102010
4
Quaternary
21213020120301
5
Quinary
312240043123
6
Senary
24000113133
8
Octal
1147103061
10
Decimal
161252913
12
Duodecimal
460057a9
16
Hexadecimal
99c8631
20
Vigesimal
2a7gc5d
36
Base36
2o07jl
md5
14976f3020ac7b4c4fafad9f46b6636d
sha1
0a84d61d8bec01089bc27e49970f0177e8c2d43e
sha256
49df6fb1a7b0c0e2bababb53ccfac9501615de247703ed53885648e37e19c8bf
sha512
672757aa91e11f13206abbf6aa9de8969e4dd36a636e6c1c936a745a230fa4ad7f2955de08bf3c3d0f3438b19086cddd521bac498d0e79b0393b7beb094f8014
ripemd-160
8165b8dec209e69e4171c883816459f5b8d8156e
Diameter
322505826
Circumference
1013181933.7015
Area
8.1689269104171E+16
Volume
1.7563510138518E+25
Surface area
3.2675707641668E+17
Circumference
1013181933.7015
Perimeter
645011652
Area
26002501950985569
Diagonal
228046056.53677
Surface area
156015011705913414
Volume
4.1929791848846E+24
Space diagonal
279298238.18448
Perimeter
483758739
Area
1.1259413625754E+16
Altitude
139649119.09224
Surface area
1.1259413625754E+16
Volume
4.9414733583432E+23
Height
76015352.178923