161869728 is an even 9-digits composite number following 161869727
and preceding 161869729 . In scientific notation, it is written as 1.61869728 × 10^8.
The sum of its digits is 48. It has a total of 7 prime factors and 24 positive divisors.
There are 53956544 positive integers (up to 161869728) that are relatively prime to 161869728.
161869728 has 24 divisors, whose sum is 424908288
The reverse of 161869728 is 827968161
Previous prime number is 3
Is Prime? no Number parity even Number length 9 Sum of Digits 48 Digital Root 3
Name
one hundred sixty-one million eight hundred sixty-nine thousand seven hundred twenty-eight
Scientific notation
1.61869728 × 10^8
Engineering notation
1.61869728 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 3 × 1686143
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
7 Total number of prime factors
rad Radical
10116858 Product of the distinct prime numbers
The prime factorization of 161869728 is 2 × 2 × 2 × 2 × 2 × 3 × 1686143.
Since it has a total of 7 prime factors.
4 , 9 , 38 , 12 , 344 , 632 , 6419 , 329 , 46380 , 37029 , 4312 , 466123 , 971138 , 9496598 , 14085761 , 98180426 , 885326302 , 471921020 , 1291631566 , 6539456316
n×2
323739456
n×3
485609184
n×4
647478912
n×5
809348640
n÷2
80934864
n÷3
53956576
n÷3
40467432
n÷5
32373945.6
n2
26201808842793984
n3
4.2412796704911E+24
n4
6.8653478663432E+32
n5
1.1112919917503E+41
2 √n12722.803464646
3 √n544.99001524787
4 √n112.79540533482
5 √n43.836222981518
1 , 2 , 3 , 4 , 6 , 8 , 12 , 16 , 24 , 32 , 48 , 96 , 1686143 , 3372286 , 5058429 , 6744572 , 10116858 , 13489144 , 20233716 , 26978288 , 40467432 , 53956576 , 80934864 , 161869728
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-161869727 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161869728 can be divided by 24 positive divisors.
The sum of these divisors (counting 161869728) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001101001011110111110100000
3
Ternary
102021120211112010
4
Quaternary
21221132332200
5
Quinary
312414312403
6
Senary
24021232520
8
Octal
1151367640
10
Decimal
161869728
12
Duodecimal
46262740
16
Hexadecimal
9a5efa0
20
Vigesimal
2abde68
36
Base36
2odfhc
md5
b9ef926c13f9dc2913d1f04df6a58bbf
sha1
45c3c557725f3c307f36f94b8c7706b10fd31332
sha256
130ca330dbdabb23e4b62f0f1715ae89216b6a0fee85524a206c43e71413f085
sha512
657310b0ab585e39590c4ee6c4ebd32a017dc5236de5853d09e39ef0c5499d5e775b1d83b859e35b07b00f4a31ce3ab7f97859508d74635af6d75331e7e81d04
ripemd-160
09eee678e19b7f66fbb9a96e2fe74734852c22ca
Diameter
323739456
Circumference
1017057496.6468
Area
8.2315410171286E+16
Volume
1.7765830739513E+25
Surface area
3.2926164068514E+17
Circumference
1017057496.6468
Perimeter
647478912
Area
26201808842793984
Diagonal
228918364.67524
Surface area
157210853056763904
Volume
4.2412796704911E+24
Space diagonal
280366593.10335
Perimeter
485609184
Area
1.1345716041482E+16
Altitude
140183296.55168
Surface area
1.1345716041482E+16
Volume
4.9983960265215E+23
Height
76306121.558415