161866561 (number)

161866561 is an odd 9-digits prime number following 161866560 and preceding 161866562. In scientific notation, it is written as 1.61866561 × 10^8. The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors. There are 161866560 positive integers (up to 161866561) that are relatively prime to 161866561.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million eight hundred sixty-six thousand five hundred sixty-one

Notation

Scientific notation 1.61866561 × 10^8
Engineering notation 1.61866561 × 10^6

Prime Factorization of 161866561

Prime Factorization 161866561

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 161866561
Product of the distinct prime numbers

The prime factorization of 161866561 is 161866561. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 161866561)

Multiplication

n×y
n×2 323733122
n×3 485599683
n×4 647466244
n×5 809332805

Division

n÷y
n÷2 80933280.5
n÷3 53955520.333333
n÷3 40466640.25
n÷5 32373312.2

Exponentiation

ny
n2 26200783569966721
n3 4.2410307319758E+24
n4 6.8648105968024E+32
n5 1.1111832832208E+41

Nth Root

y√n
2√n 12722.679002474
3√n 544.98646096041
4√n 112.79485361697
5√n 43.836051448019

Divisors of 161866561

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 161866562
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 80933281
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 12722.679041774
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999876441
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161866561 can be divided by 2 positive divisors. The sum of these divisors (counting 161866561) is 161866562, the average is 80933281.

Base conversion 161866561

Base System Value
2 Binary 1001101001011110001101000001
3 Ternary 102021120200011211
4 Quaternary 21221132031001
5 Quinary 312414212221
6 Senary 24021210121
8 Octal 1151361501
10 Decimal 161866561
12 Duodecimal 46260941
16 Hexadecimal 9a5e341
20 Vigesimal 2abd681
36 Base36 2odd1d

Cryptographic Hash Functions

md5 ddc9cc2973adee02ff75a1f33be7aefb
sha1 b0f13f7eeb268c0e3cdeb3e3b093df7fc0f431b6
sha256 c6d7c8654d763ac5c313f6be4bebba1fad8cdd6050d36d1c1f44e9848ba70803
sha512 a9bdf896227eb1fbffac448554347b601a26274b53f5166718833e8f7739c49d585f8819bcc23e4c65479f4ba76c6b0133697485bf61f7b542abfab9af04683c
ripemd-160 d6aec1d7d8b033be0a5ad814f6554e7a893f946a

161866561 as geometric shapes

Circle

Radius = n
Diameter 323733122
Circumference 1017037597.7989
Area 8.2312189181704E+16

Sphere

Radius = n
Volume 1.7764787988298E+25
Surface area 3.2924875672681E+17
Circumference 1017037597.7989

Square

Length = n
Perimeter 647466244
Area 26200783569966721
Diagonal 228913885.86089

Cube

Length = n
Surface area 157204701419800326
Volume 4.2410307319758E+24
Space diagonal 280361107.69845

Equilateral Triangle

Length = n
Perimeter 485599683
Area 1.1345272085325E+16
Altitude 140180553.84922

Triangular Pyramid

Length = n
Surface area 1.1345272085325E+16
Volume 4.9981026496677E+23
Height 76304628.620297