161649 (number)

161649 is an odd 6-digits composite number following 161648 and preceding 161650. In scientific notation, it is written as 1.61649 × 10^5. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 107748 positive integers (up to 161649) that are relatively prime to 161649.

Interesting facts

Basic properties

Name

Name one hundred sixty-one thousand six hundred forty-nine

Notation

Scientific notation 1.61649 × 10^5
Engineering notation 1.61649 × 10^3

Prime Factorization of 161649

Prime Factorization 27 × 5987

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 161649
Product of the distinct prime numbers

The prime factorization of 161649 is 27 × 5987. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 8, 13, 38, 153, 561, 6943, 4130, 35507, 23896, 671972, 658021, 2417166, 5363200, 77812375, 67740710, 356744377, 755813959, 6050676841, 239039008

Basic calculations (n = 161649)

Multiplication

n×y
n×2 323298
n×3 484947
n×4 646596
n×5 808245

Division

n÷y
n÷2 80824.5
n÷3 53883
n÷3 40412.25
n÷5 32329.8

Exponentiation

ny
n2 26130399201
n3 4223952900442449
n4 6.8279776240362E+20
n5 1.1037357549478E+26

Nth Root

y√n
2√n 402.05596625346
3√n 54.474218369938
4√n 20.051333278699
5√n 11.008156735166

Divisors of 161649

1, 27, 5987, 161649

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 -161648
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 161649 can be divided by 4 positive divisors. The sum of these divisors (counting 161649) is 1, the average is 0.25.

Base conversion 161649

Base System Value
2 Binary 100111011101110001
3 Ternary 22012202000
4 Quaternary 213131301
5 Quinary 20133044
6 Senary 3244213
8 Octal 473561
10 Decimal 161649
12 Duodecimal 79669
16 Hexadecimal 27771
20 Vigesimal 10429
36 Base36 3gq9

Cryptographic Hash Functions

md5 ebb480f3b3b76010489479ef836e92d2
sha1 e792e672795494da357f2eff42d3907eb8f37355
sha256 fea1d2c71e1ee7085e52ee8c82fdb55b37666d59fe995ebd4f4770748b9feba8
sha512 fee11301a0bd282058d388b5cebf0f292966914b600ecd3a32af9b0bffb67289c6e6cd7bcb62ceecff3fbf41a3fb03608185a976b9ba75ed18122733891e535c
ripemd-160 e86480c729bc6c85921eab7545f83f6fd2543f31

161649 as geometric shapes

Circle

Radius = n
Diameter 323298
Circumference 1015670.6217203
Area 82091070165.23

Sphere

Radius = n
Volume 1.7693252534852E+16
Surface area 328364280660.92
Circumference 1015670.6217203

Square

Length = n
Perimeter 646596
Area 26130399201
Diagonal 228606.20814405

Cube

Length = n
Surface area 156782395206
Volume 4223952900442449
Space diagonal 279984.2809927

Equilateral Triangle

Length = n
Perimeter 484947
Area 11314794759.547
Altitude 139992.14049635

Triangular Pyramid

Length = n
Surface area 11314794759.547
Volume 4.9779762321924E+14
Height 76202.069381349