161639 is an odd 6-digits prime number following 161638
and preceding 161640 . In scientific notation, it is written as 1.61639 × 10^5.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 161638 positive integers (up to 161639) that are relatively prime to 161639.
161639 has 2 divisors, whose sum is 161640
The reverse of 161639 is 936161
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 26
Digital Root 8
Name
one hundred sixty-one thousand six hundred thirty-nine
Scientific notation
1.61639 × 10^5
Engineering notation
1.61639 × 10^3
Prime Factorization
161639
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
161639
Product of the distinct prime numbers
The prime factorization of 161639 is 161639.
Since it has a total of 1 prime factors.
3 , 2 , 37 , 23 , 267 , 541 , 4190 , 1563 , 87360 , 75696 , 386139 , 873517 , 8212188 , 8769584 , 27043119 , 56766914 , 763206045 , 124758732 , 1577949018 , 5886006196
n×2
323278
n×3
484917
n×4
646556
n×5
808195
n÷2
80819.5
n÷3
53879.666666667
n÷3
40409.75
n÷5
32327.8
n2
26127166321
n3
4223169036960119
n4
6.826288199652E+20
n5
1.1033943983035E+26
2 √n
402.04352998152
3 √n
54.473095044261
4 √n
20.051023165453
5 √n
11.00802053353
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
161640
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
80820
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
402.04477362602
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999987626825
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 161639 can be divided by 2 positive divisors.
The sum of these divisors (counting 161639) is 161640, the average is 80820.
Base
System
Value
2
Binary
100111011101100111
3
Ternary
22012201122
4
Quaternary
213131213
5
Quinary
20133024
6
Senary
3244155
8
Octal
473547
10
Decimal
161639
12
Duodecimal
7965b
16
Hexadecimal
27767
20
Vigesimal
1041j
36
Base36
3gpz
md5
8384ded04116e0a5a9c8bd5f003b5e38
sha1
4df2e9ba8e42e0e4c145c19cc63e04ad3cbd302c
sha256
ba1d6f02e46ea21b03ce13722383dc94e1e2c23f7482b82294702b34d807b942
sha512
0c70107757b760aa9c3212faec7b57ce5e64f47df2098bbbaff04fcddd49ad58c0d0a4ea692c3d1ce1bca6aeebe2a72f388ed0bd8cffb8d3d1a535b0cb6f1f0e
ripemd-160
c0ec84b66ef0f5db3b506f47917323a0c5321daf
Diameter
323278
Circumference
1015607.7898672
Area
82080913773.172
Volume
1.7689969095176E+16
Surface area
328323655092.69
Circumference
1015607.7898672
Perimeter
646556
Area
26127166321
Diagonal
228592.06600842
Surface area
156762997926
Volume
4223169036960119
Space diagonal
279966.96048463
Perimeter
484917
Area
11313394881.444
Altitude
139983.48024231
Surface area
11313394881.444
Volume
4.9770524402193E+14
Height
76197.355336142