161007691 is an odd 9-digits composite number following 161007690
and preceding 161007692 . In scientific notation, it is written as 1.61007691 × 10^8.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 140800032 positive integers (up to 161007691) that are relatively prime to 161007691.
161007691 has 8 divisors, whose sum is 182519120
The reverse of 161007691 is 196700161
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 9
Sum of Digits 31
Digital Root 4
Name
one hundred sixty-one million seven thousand six hundred ninety-one
Scientific notation
1.61007691 × 10^8
Engineering notation
1.61007691 × 10^6
Prime Factorization
13 × 19 × 651853
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
161007691
Product of the distinct prime numbers
The prime factorization of 161007691 is 13 × 19 × 651853.
Since it has a total of 3 prime factors.
5 , 1 , 10 , 28 , 557 , 647 , 1282 , 3501 , 33967 , 61726 , 382087 , 496560 , 2802288 , 6813604 , 26641452 , 81158913 , 723802536 , 629789351 , 3856874997 , 6597732992
n×2
322015382
n×3
483023073
n×4
644030764
n×5
805038455
n÷2
80503845.5
n÷3
53669230.333333
n÷3
40251922.75
n÷5
32201538.2
n2
25923476561151481
n3
4.1738791038036E+24
n4
6.7202663701657E+32
n5
1.0820145711653E+41
2 √n
12688.880604687
3 √n
544.02084492466
4 √n
112.64493155347
5 √n
43.789433255337
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
-161007690
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 161007691 can be divided by 8 positive divisors.
The sum of these divisors (counting 161007691) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110001100100001001011
3
Ternary
102012222001000211
4
Quaternary
21212030201023
5
Quinary
312204221231
6
Senary
23550541551
8
Octal
1146144113
10
Decimal
161007691
12
Duodecimal
45b078b7
16
Hexadecimal
998c84b
20
Vigesimal
2a65j4b
36
Base36
2nuybv
md5
370286b30d31c5cd31e0dfabefce1342
sha1
c527a90545cc12118fae6fb601d26a6e1af44ec1
sha256
d5cbcdf34c70ad721bc190f126b49c28308d7ad20f6c3de820d7344442389e9d
sha512
49217ee30ba97f9661f105c6bf554adcc08c949f0744a3f431463a4095f8ef367aa5b8720aabb6af1fad1f1c5ed74cce33f4ad349d82274bb83115247a9a92cf
ripemd-160
71ab207f1dbd3354f67a898a603bee2291b58393
Diameter
322015382
Circumference
1011641158.4341
Area
8.1441003520021E+16
Volume
1.7483503905975E+25
Surface area
3.2576401408008E+17
Circumference
1011641158.4341
Perimeter
644030764
Area
25923476561151481
Diagonal
227699260.25858
Surface area
155540859366908886
Volume
4.1738791038036E+24
Space diagonal
278873501.22135
Perimeter
483023073
Area
1.1225194628184E+16
Altitude
139436750.61068
Surface area
1.1225194628184E+16
Volume
4.9189636969206E+23
Height
75899753.419526