161856109 (number)

161856109 is an odd 9-digits composite number following 161856108 and preceding 161856110. In scientific notation, it is written as 1.61856109 × 10^8. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 158230800 positive integers (up to 161856109) that are relatively prime to 161856109.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million eight hundred fifty-six thousand one hundred nine

Notation

Scientific notation 1.61856109 × 10^8
Engineering notation 1.61856109 × 10^6

Prime Factorization of 161856109

Prime Factorization 2647 × 47 × 1301

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 161856109
Product of the distinct prime numbers

The prime factorization of 161856109 is 2647 × 47 × 1301. Since it has a total of 3 prime factors.

Most popular turbo-numbers

1, 8, 15, 78, 95, 2, 2812, 1013, 24943, 9925, 609721, 366605, 2001391, 1130221, 94913641, 14372597, 857492848, 830600398, 9037931212, 9026833126

Basic calculations (n = 161856109)

Multiplication

n×y
n×2 323712218
n×3 485568327
n×4 647424436
n×5 809280545

Division

n÷y
n÷2 80928054.5
n÷3 53952036.333333
n÷3 40464027.25
n÷5 32371221.8

Exponentiation

ny
n2 26197400020619881
n3 4.2402092332541E+24
n4 6.8630376784037E+32
n5 1.1108245745468E+41

Nth Root

y√n
2√n 12722.268233299
3√n 544.97473047273
4√n 112.79303273385
5√n 43.83548531967

Divisors of 161856109

1, 47, 1301, 2647, 61147, 124409, 3443747, 161856109

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 -161856108
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 161856109 can be divided by 8 positive divisors. The sum of these divisors (counting 161856109) is 1, the average is 0.125.

Base conversion 161856109

Base System Value
2 Binary 1001101001011011101001101101
3 Ternary 102021120010211201
4 Quaternary 21221123221231
5 Quinary 312413343414
6 Senary 24021045501
8 Octal 1151335155
10 Decimal 161856109
12 Duodecimal 46256891
16 Hexadecimal 9a5ba6d
20 Vigesimal 2abc059
36 Base36 2od4z1

Cryptographic Hash Functions

md5 f9455f3acad217985a6790b17c93148d
sha1 1b1a7cb20a872f010e742d137b434e4ec2ef38a0
sha256 b3e0a4f8379645a601996ae7d289a1f311793f2d4fc8cb1b34859b9af96753bb
sha512 81c1512bd18cd89bf1163af5adc373be18edc8b3404b344930a54805897c3d3b712e937a76d1b215ad66a86a3de2ba3e1de87f1623540a6a45aa529f9ffa47cb
ripemd-160 ee93a1488303ba3c13c61cb1be94f266813bd4b1

161856109 as geometric shapes

Circle

Radius = n
Diameter 323712218
Circumference 1016971925.9461
Area 8.2301559447933E+16

Sphere

Radius = n
Volume 1.7761346902499E+25
Surface area 3.2920623779173E+17
Circumference 1016971925.9461

Square

Length = n
Perimeter 647424436
Area 26197400020619881
Diagonal 228899104.50074

Cube

Length = n
Surface area 157184400123719286
Volume 4.2402092332541E+24
Space diagonal 280343004.30341

Equilateral Triangle

Length = n
Perimeter 485568327
Area 1.134380696548E+16
Altitude 140171502.1517

Triangular Pyramid

Length = n
Surface area 1.134380696548E+16
Volume 4.9971345041396E+23
Height 76299701.500246