161720 (number)

161720 is an even 6-digits composite number following 161719 and preceding 161721. In scientific notation, it is written as 1.61720 × 10^5. The sum of its digits is 17. It has a total of 6 prime factors and 32 positive divisors. There are 59520 positive integers (up to 161720) that are relatively prime to 161720.

Interesting facts

Basic properties

Name

Name one hundred sixty-one thousand seven hundred twenty

Notation

Scientific notation 1.61720 × 10^5
Engineering notation 1.61720 × 10^3

Prime Factorization of 161720

Prime Factorization 2 × 2 × 2 × 5 × 13 × 311

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40430
Product of the distinct prime numbers

The prime factorization of 161720 is 2 × 2 × 2 × 5 × 13 × 311. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 161720)

Multiplication

n×y
n×2 323440
n×3 485160
n×4 646880
n×5 808600

Division

n÷y
n÷2 80860
n÷3 53906.666666667
n÷3 40430
n÷5 32344

Exponentiation

ny
n2 26153358400
n3 4229521120448000
n4 6.8399815559885E+20
n5 1.1061618172345E+26

Nth Root

y√n
2√n 402.14425272531
3√n 54.482192650396
4√n 20.053534669113
5√n 11.009123573005

Divisors of 161720

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161719
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161720 can be divided by 32 positive divisors. The sum of these divisors (counting 161720) is 1, the average is 0.03125.

Base conversion 161720

Base System Value
2 Binary 100111011110111000
3 Ternary 22012211122
4 Quaternary 213132320
5 Quinary 20133340
6 Senary 3244412
8 Octal 473670
10 Decimal 161720
12 Duodecimal 79708
16 Hexadecimal 277b8
20 Vigesimal 10460
36 Base36 3gs8

Cryptographic Hash Functions

md5 2651e30c868e972d001a0404ffc69cd5
sha1 65b2087ce3f7c7a38808cd96118c4587c6219515
sha256 c7ffd6f4ea91fbfa91586964fce733c9dc2812a16af7798a19e885b1b6ca4f82
sha512 cdc79269050943e296fd43a3755764b646ada4c401ad44f1b98dd1874ebaad89494c24d51b781a74b579632a9a9c727211d3be8925777fb6e6506fbef2a04320
ripemd-160 eb2cec40c81b05e5c0105785c5bf472a269476c3

161720 as geometric shapes

Circle

Radius = n
Diameter 323440
Circumference 1016116.7278771
Area 82163198616.141

Sphere

Radius = n
Volume 1.771657664027E+16
Surface area 328652794464.56
Circumference 1016116.7278771

Square

Length = n
Perimeter 646880
Area 26153358400
Diagonal 228706.61730698

Cube

Length = n
Surface area 156920150400
Volume 4229521120448000
Space diagonal 280107.25660004

Equilateral Triangle

Length = n
Perimeter 485160
Area 11324736384.34
Altitude 140053.62830002

Triangular Pyramid

Length = n
Surface area 11324736384.34
Volume 4.9845384424008E+14
Height 76235.539102326