161768138 is an even 9-digits composite number following 161768137
and preceding 161768139 . In scientific notation, it is written as 1.61768138 × 10^8.
The sum of its digits is 41. It has a total of 4 prime factors and 16 positive divisors.
There are 69284160 positive integers (up to 161768138) that are relatively prime to 161768138.
161768138 has 16 divisors, whose sum is 277497024
The reverse of 161768138 is 831867161
Previous prime number is 2161
Is Prime? no Number parity even Number length 9 Sum of Digits 41 Digital Root 5
Name
one hundred sixty-one million seven hundred sixty-eight thousand one hundred thirty-eight
Scientific notation
1.61768138 × 10^8
Engineering notation
1.61768138 × 10^6
Prime Factorization
2 × 7 × 2161 × 5347
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
4 Total number of prime factors
rad Radical
161768138 Product of the distinct prime numbers
The prime factorization of 161768138 is 2 × 7 × 2161 × 5347.
Since it has a total of 4 prime factors.
1 , 7 , 71 , 95 , 237 , 629 , 7989 , 3683 , 59758 , 56487 , 99884 , 867647 , 3247736 , 5308648 , 77745522 , 67328068 , 510357235 , 380862002 , 526631653 , 6393761335
n×2
323536276
n×3
485304414
n×4
647072552
n×5
808840690
n÷2
80884069
n÷3
53922712.666667
n÷3
40442034.5
n÷5
32353627.6
n2
26168930471987044
n3
4.2332991559048E+24
n4
6.8481292204769E+32
n5
1.1078091127799E+41
2 √n12718.810400348
3 √n544.87597884978
4 √n112.77770347169
5 √n43.83071924671
1 , 2 , 7 , 14 , 2161 , 4322 , 5347 , 10694 , 15127 , 30254 , 37429 , 74858 , 11554867 , 23109734 , 80884069 , 161768138
16 divisors
τ Total Divisors
16 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-161768137 Sum of the proper positive divisors of n
A Arithmetic Mean
0.0625 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
16 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161768138 can be divided by 16 positive divisors.
The sum of these divisors (counting 161768138) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101001000110001011001010
3
Ternary
102021101200011112
4
Quaternary
21221012023022
5
Quinary
312403040023
6
Senary
24015130322
8
Octal
1151061312
10
Decimal
161768138
12
Duodecimal
462139a2
16
Hexadecimal
9a462ca
20
Vigesimal
2ab106i
36
Base36
2ob93e
md5
a35067ec0819e4355fcb4c98a9702501
sha1
b7f973e9257fab00ef6742ade1772ea9b2124397
sha256
9f40551ed65735135c54689ee7a5103757f344e191dead958b2a274d579efca1
sha512
973d6c5f8f38c621cc8c38793c1fc5ada2200ce935fd0d49b535957f8436de308ebbb800cd6dff7562bac977667bce699015a20385e7d6844a4da62aed46ab15
ripemd-160
ecf2f9dba1bc09b1e6c41a91878b26081bc8b98c
Diameter
323536276
Circumference
1016419187.8514
Area
8.2212119723097E+16
Volume
1.7732402038185E+25
Surface area
3.2884847889239E+17
Circumference
1016419187.8514
Perimeter
647072552
Area
26168930471987044
Diagonal
228774694.71944
Surface area
157013582831922264
Volume
4.2332991559048E+24
Space diagonal
280190634.06181
Perimeter
485304414
Area
1.1331479289305E+16
Altitude
140095317.03091
Surface area
1.1331479289305E+16
Volume
4.988990899886E+23
Height
76258231.573147