161991034 is an even 9-digits composite number following 161991033
and preceding 161991035 . In scientific notation, it is written as 1.61991034 × 10^8.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 80995516 positive integers (up to 161991034) that are relatively prime to 161991034.
161991034 has 4 divisors, whose sum is 242986554
The reverse of 161991034 is 430199161
Previous prime number is 2
Is Prime? no
Number parity even
Number length 9
Sum of Digits 34
Digital Root 7
Name
one hundred sixty-one million nine hundred ninety-one thousand thirty-four
Scientific notation
1.61991034 × 10^8
Engineering notation
1.61991034 × 10^6
Prime Factorization
2 × 80995517
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
161991034
Product of the distinct prime numbers
The prime factorization of 161991034 is 2 × 80995517.
Since it has a total of 2 prime factors.
3 , 9 , 85 , 77 , 391 , 752 , 449 , 7458 , 86316 , 64523 , 705862 , 291134 , 6584641 , 7263160 , 28844643 , 91085939 , 747806514 , 468320856 , 2513064089 , 1006516533
n×2
323982068
n×3
485973102
n×4
647964136
n×5
809955170
n÷2
80995517
n÷3
53997011.333333
n÷3
40497758.5
n÷5
32398206.8
n2
26241095096389156
n3
4.2508221279564E+24
n4
6.8859507185774E+32
n5
1.1154622769754E+41
2 √n
12727.56983874
3 √n
545.12612068679
4 √n
112.81653176171
5 √n
43.842791230731
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
-161991033
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 161991034 can be divided by 4 positive divisors.
The sum of these divisors (counting 161991034) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101001111100100101111010
3
Ternary
102021210222220221
4
Quaternary
21221330211322
5
Quinary
312432203114
6
Senary
24024010254
8
Octal
1151744572
10
Decimal
161991034
12
Duodecimal
4630098a
16
Hexadecimal
9a7c97a
20
Vigesimal
2ac8hbe
36
Base36
2og12y
md5
ad0e364c82207bc7848bf991312e421a
sha1
0bc0476450a372f965ef39ec52d2b3ef891d4327
sha256
964009a4b238b9b7e7e403eb379b2ad36f756b4b4009c489f15df47b1cf4b7db
sha512
31a21542ea04aba216d782d1ae676a110657466316f2b6de679082093fe6ba36afaf71cedf16ca3f91c19cead17c6cbaa2d5e5517a533be1000b62b7336ab94c
ripemd-160
d6bfc5c170109d2f6c61504d3671afc9680eea06
Diameter
323982068
Circumference
1017819684.7236
Area
8.2438831576967E+16
Volume
1.7805802091873E+25
Surface area
3.2975532630787E+17
Circumference
1017819684.7236
Perimeter
647964136
Area
26241095096389156
Diagonal
229089917.26564
Surface area
157446570578334936
Volume
4.2508221279564E+24
Space diagonal
280576701.25862
Perimeter
485973102
Area
1.1362727488298E+16
Altitude
140288350.62931
Surface area
1.1362727488298E+16
Volume
5.009641920493E+23
Height
76363305.755214