161801890 (number)

161801890 is an even 9-digits composite number following 161801889 and preceding 161801891. In scientific notation, it is written as 1.61801890 × 10^8. The sum of its digits is 34. It has a total of 4 prime factors and 16 positive divisors. There are 63659520 positive integers (up to 161801890) that are relatively prime to 161801890.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million eight hundred one thousand eight hundred ninety

Notation

Scientific notation 1.61801890 × 10^8
Engineering notation 1.61801890 × 10^6

Prime Factorization of 161801890

Prime Factorization 2 × 5 × 61 × 265249

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 161801890
Product of the distinct prime numbers

The prime factorization of 161801890 is 2 × 5 × 61 × 265249. Since it has a total of 4 prime factors.

Most popular turbo-numbers

1, 9, 94, 99, 366, 436, 1390, 1592, 24677, 25846, 89892, 345519, 8988033, 9565502, 2655994, 85691147, 785575212, 180286763, 7149680453, 6300281600

Basic calculations (n = 161801890)

Multiplication

n×y
n×2 323603780
n×3 485405670
n×4 647207560
n×5 809009450

Division

n÷y
n÷2 80900945
n÷3 53933963.333333
n÷3 40450472.5
n÷5 32360378

Exponentiation

ny
n2 26179851607572100
n3 4.2359494700247E+24
n4 6.853846301945E+32
n5 1.1089652854242E+41

Nth Root

y√n
2√n 12720.137184795
3√n 544.91387130372
4√n 112.78358561774
5√n 43.832548100036

Divisors of 161801890

1, 2, 5, 10, 61, 122, 305, 610, 265249, 530498, 1326245, 2652490, 16180189, 32360378, 80900945, 161801890

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161801889
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161801890 can be divided by 16 positive divisors. The sum of these divisors (counting 161801890) is 1, the average is 0.0625.

Base conversion 161801890

Base System Value
2 Binary 1001101001001110011010100010
3 Ternary 102021110101110121
4 Quaternary 21221032122202
5 Quinary 312410130030
6 Senary 24015550454
8 Octal 1151163242
10 Decimal 161801890
12 Duodecimal 4622b42a
16 Hexadecimal 9a4e6a2
20 Vigesimal 2ab54ea
36 Base36 2obz4y

Cryptographic Hash Functions

md5 c66c7a948b9d7bff81f962e2909cddbe
sha1 22d6044a3b1fd2883c3c67ffb2a189552c01f40e
sha256 f17b2bb0c828e9d4e50094ce94ca21fc051d71b932fd1d5b84e1a83e0ea4e71e
sha512 eb2ea0c8d18a05fd4adf7b0d9106fcc2546cfaf12c1eb71e039526b915b995ebdb1920d83564c68477b08da7e07e15d870504fc1fca38e884474a731b6f772d4
ripemd-160 798b006df520c521eb2f208a814f0a30d1c32263

161801890 as geometric shapes

Circle

Radius = n
Diameter 323603780
Circumference 1016631257.9219
Area 8.2246429482419E+16

Sphere

Radius = n
Volume 1.774350364801E+25
Surface area 3.2898571792968E+17
Circumference 1016631257.9219

Square

Length = n
Perimeter 647207560
Area 26179851607572100
Diagonal 228822427.2556

Cube

Length = n
Surface area 157079109645432600
Volume 4.2359494700247E+24
Space diagonal 280249094.24067

Equilateral Triangle

Length = n
Perimeter 485405670
Area 1.1336208279732E+16
Altitude 140124547.12034

Triangular Pyramid

Length = n
Surface area 1.1336208279732E+16
Volume 4.9921143250301E+23
Height 76274142.418533