161005985 (number)

161005985 is an odd 9-digits composite number following 161005984 and preceding 161005986. In scientific notation, it is written as 1.61005985 × 10^8. The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors. There are 108531456 positive integers (up to 161005985) that are relatively prime to 161005985.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million five thousand nine hundred eighty-five

Notation

Scientific notation 1.61005985 × 10^8
Engineering notation 1.61005985 × 10^6

Prime Factorization of 161005985

Prime Factorization 35 × 59 × 77969

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 161005985
Product of the distinct prime numbers

The prime factorization of 161005985 is 35 × 59 × 77969. Since it has a total of 3 prime factors.

Most popular turbo-numbers

3, 1, 5, 76, 928, 326, 6815, 755, 17215, 17097, 672029, 144010, 4087571, 1902459, 57323303, 28244990, 178315032, 904423620, 7282301976, 8481745667

Basic calculations (n = 161005985)

Multiplication

n×y
n×2 322011970
n×3 483017955
n×4 644023940
n×5 805029925

Division

n÷y
n÷2 80502992.5
n÷3 53668661.666667
n÷3 40251496.25
n÷5 32201197

Exponentiation

ny
n2 25922927205820225
n3 4.1737464288564E+24
n4 6.7199815491825E+32
n5 1.081957248508E+41

Nth Root

y√n
2√n 12688.813380297
3√n 544.01892347847
4√n 112.64463316242
5√n 43.789340458416

Divisors of 161005985

1, 35, 59, 2065, 77969, 2728915, 4600171, 161005985

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 -161005984
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 161005985 can be divided by 8 positive divisors. The sum of these divisors (counting 161005985) is 1, the average is 0.125.

Base conversion 161005985

Base System Value
2 Binary 1001100110001100000110100001
3 Ternary 102012221221200122
4 Quaternary 21212030012201
5 Quinary 312204142420
6 Senary 23550530025
8 Octal 1146140641
10 Decimal 161005985
12 Duodecimal 45b06915
16 Hexadecimal 998c1a1
20 Vigesimal 2a65ej5
36 Base36 2nux0h

Cryptographic Hash Functions

md5 6e3bc93eee072408c2c6c3e41d10552d
sha1 bfd201ce90f6b89b280860992de8c18b5278cc57
sha256 38ed9842783ecb2a824d47e616ed28deceb2ab0bf074ccab2d04b612132597da
sha512 14ea3c23a4528f536ec82370b28fc77df09af981e60037eedcd303b70eec7df882a75f1c353fe33a72e856670e8eaf7a64dc1b31ab4884289dc7c0103bd9928a
ripemd-160 ace75384f5a7f045e21eb71a07a7e67f0712c9f2

161005985 as geometric shapes

Circle

Radius = n
Diameter 322011970
Circumference 1011630439.32
Area 8.1439277669348E+16

Sphere

Radius = n
Volume 1.7482948158456E+25
Surface area 3.2575711067739E+17
Circumference 1011630439.32

Square

Length = n
Perimeter 644023940
Area 25922927205820225
Diagonal 227696847.61024

Cube

Length = n
Surface area 155537563234921350
Volume 4.1737464288564E+24
Space diagonal 278870546.34267

Equilateral Triangle

Length = n
Perimeter 483017955
Area 1.1224956750348E+16
Altitude 139435273.17134

Triangular Pyramid

Length = n
Surface area 1.1224956750348E+16
Volume 4.9188073379958E+23
Height 75898949.203413