161855690 (number)

161855690 is an even 9-digits composite number following 161855689 and preceding 161855691. In scientific notation, it is written as 1.61855690 × 10^8. The sum of its digits is 41. It has a total of 5 prime factors and 32 positive divisors. There are 63803520 positive integers (up to 161855690) that are relatively prime to 161855690.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.61855690 × 10^8
Engineering notation 1.61855690 × 10^6

Prime Factorization of 161855690

Prime Factorization 2 × 5 × 457 × 107 × 331

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 161855690
Product of the distinct prime numbers

The prime factorization of 161855690 is 2 × 5 × 457 × 107 × 331. Since it has a total of 5 prime factors.

Most popular turbo-numbers

5, 10, 55, 45, 205, 30, 2984, 6299, 64004, 36337, 469865, 299948, 3567386, 9386399, 75518670, 74663472, 350646809, 7990154, 393824214, 6641411424

Basic calculations (n = 161855690)

Multiplication

n×y
n×2 323711380
n×3 485567070
n×4 647422760
n×5 809278450

Division

n÷y
n÷2 80927845
n÷3 53951896.666667
n÷3 40463922.5
n÷5 32371138

Exponentiation

ny
n2 26197264385376100
n3 4.2401763032075E+24
n4 6.8629666127729E+32
n5 1.1108101965573E+41

Nth Root

y√n
2√n 12722.251766099
3√n 544.97426021016
4√n 112.79295973641
5√n 43.835462624095

Divisors of 161855690

1, 2, 5, 10, 107, 214, 331, 457, 535, 662, 914, 1070, 1655, 2285, 3310, 4570, 35417, 48899, 70834, 97798, 151267, 177085, 244495, 302534, 354170, 488990, 756335, 1512670, 16185569, 32371138, 80927845, 161855690

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 -161855689
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 161855690 can be divided by 32 positive divisors. The sum of these divisors (counting 161855690) is 1, the average is 0.03125.

Base conversion 161855690

Base System Value
2 Binary 1001101001011011100011001010
3 Ternary 102021120010021012
4 Quaternary 21221123203022
5 Quinary 312413340230
6 Senary 24021043522
8 Octal 1151334312
10 Decimal 161855690
12 Duodecimal 462565a2
16 Hexadecimal 9a5b8ca
20 Vigesimal 2abbj4a
36 Base36 2od4ne

Cryptographic Hash Functions

md5 af6ddf0ab63c74cfada53e0025e36d43
sha1 53256d245630a7d7be57f019a6c2b56efdab0c02
sha256 4c16ef4fc9f61fb17719a336527cf76a6567855ce38af073baaa27f1c2a0cb0a
sha512 5d5909bcd583d7a3c42e09ae73f4d488f91c39357d98ec2fef79712b91c1d9408ecbb0c060b9ce9889c479673b9e8256d416006ec8109b373c92fb243bb1333d
ripemd-160 24cabfec2c5c0f4481fe3dd8f541a09f119bd247

161855690 as geometric shapes

Circle

Radius = n
Diameter 323711380
Circumference 1016969293.2914
Area 8.2301133337247E+16

Sphere

Radius = n
Volume 1.7761208965443E+25
Surface area 3.2920453334899E+17
Circumference 1016969293.2914

Square

Length = n
Perimeter 647422760
Area 26197264385376100
Diagonal 228898511.94526

Cube

Length = n
Surface area 157183586312256600
Volume 4.2401763032075E+24
Space diagonal 280342278.57412

Equilateral Triangle

Length = n
Perimeter 485567070
Area 1.1343748233697E+16
Altitude 140171139.28706

Triangular Pyramid

Length = n
Surface area 1.1343748233697E+16
Volume 4.9970956957075E+23
Height 76299503.981752