991661 is an odd 6-digits composite number following 991660
and preceding 991662 . In scientific notation, it is written as 9.91661 × 10^5.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 848320 positive integers (up to 991661) that are relatively prime to 991661.
991661 has 8 divisors, whose sum is 1145664
The reverse of 991661 is 166199
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 6
Sum of Digits 32
Digital Root 5
Name
nine hundred ninety-one thousand six hundred sixty-one
Scientific notation
9.91661 × 10^5
Engineering notation
9.91661 × 10^3
Prime Factorization
17 × 11 × 5303
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
991661
Product of the distinct prime numbers
The prime factorization of 991661 is 17 × 11 × 5303.
Since it has a total of 3 prime factors.
9 , 1 , 39 , 59 , 322 , 731 , 2219 , 7020 , 66256 , 86486 , 876803 , 557789 , 1289349 , 2867005 , 92606551 , 98186584 , 506182696 , 150097908 , 187329071 , 2000071370
n×2
1983322
n×3
2974983
n×4
3966644
n×5
4958305
n÷2
495830.5
n÷3
330553.66666667
n÷3
247915.25
n÷5
198332.2
n2
983391538921
n3
975191036877937781
n4
9.6705891882141E+23
n5
9.5899461449736E+29
2 √n
995.82177120206
3 √n
99.721257079096
4 √n
31.556643852001
5 √n
15.822410462799
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
-991660
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 991661 can be divided by 8 positive divisors.
The sum of these divisors (counting 991661) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110010000110101101
3
Ternary
1212101022012
4
Quaternary
3302012231
5
Quinary
223213121
6
Senary
33131005
8
Octal
3620655
10
Decimal
991661
12
Duodecimal
3b9a65
16
Hexadecimal
f21ad
20
Vigesimal
63j31
36
Base36
l965
md5
62bb834802aa17517af7ed3fa603dd3c
sha1
b23e5daf96dc019a509d3cb6bd61329e9f726eee
sha256
ba6a0e92cf2a57b5b10fe70fc41e20f06bb544d83ee25f7c0df470d1ef77cfe0
sha512
238614a3539bcd2402f69d127f935c89b25b59bab93071cbec7dc9a07ce9972e18d9dcd170bf837000390e80112eb0d063cacb87637786cc9755166945976f4c
ripemd-160
a57fe7eeecdd15452b22a9252d0e2e5d6c7f4576
Diameter
1983322
Circumference
6230789.824903
Area
3089415634276.6
Volume
4.0848706630698E+18
Surface area
12357662537106
Circumference
6230789.824903
Perimeter
3966644
Area
983391538921
Diagonal
1402420.4354765
Surface area
5900349233526
Volume
975191036877937781
Space diagonal
1717607.2358846
Perimeter
2974983
Area
425821027286.13
Altitude
858803.61794228
Surface area
425821027286.13
Volume
1.1492736585479E+17
Height
467473.47849216