161016987 (number)

161016987 is an odd 9-digits composite number following 161016986 and preceding 161016988. In scientific notation, it is written as 1.61016987 × 10^8. The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors. There are 107344656 positive integers (up to 161016987) that are relatively prime to 161016987.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million sixteen thousand nine hundred eighty-seven

Notation

Scientific notation 1.61016987 × 10^8
Engineering notation 1.61016987 × 10^6

Prime Factorization of 161016987

Prime Factorization 3 × 53672329

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 161016987
Product of the distinct prime numbers

The prime factorization of 161016987 is 3 × 53672329. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 9, 16, 9, 234, 659, 3785, 7809, 46510, 35110, 817608, 784874, 971754, 6614936, 62946802, 21835989, 242143583, 673070616, 3393546782, 1869103518

Basic calculations (n = 161016987)

Multiplication

n×y
n×2 322033974
n×3 483050961
n×4 644067948
n×5 805084935

Division

n÷y
n÷2 80508493.5
n÷3 53672329
n÷3 40254246.75
n÷5 32203397.4

Exponentiation

ny
n2 25926470102558169
n3 4.1746020994595E+24
n4 6.7218185197884E+32
n5 1.0823269652171E+41

Nth Root

y√n
2√n 12689.246904367
3√n 544.03131465319
4√n 112.6465574457
5√n 43.789938892265

Divisors of 161016987

1, 3, 53672329, 161016987

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161016986
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161016987 can be divided by 4 positive divisors. The sum of these divisors (counting 161016987) is 1, the average is 0.25.

Base conversion 161016987

Base System Value
2 Binary 1001100110001110110010011011
3 Ternary 102012222111210010
4 Quaternary 21212032302123
5 Quinary 312210020422
6 Senary 23551053003
8 Octal 1146166233
10 Decimal 161016987
12 Duodecimal 45b11163
16 Hexadecimal 998ec9b
20 Vigesimal 2a67297
36 Base36 2nv5i3

Cryptographic Hash Functions

md5 a46fd1f1c7850473853804b36289d054
sha1 daad860fd42104756ebe5e306124620a4ec0494f
sha256 bc9056064f1314745a083ca27041e5beb0d6a6f0a5e6657d9418d5fcaa03ba99
sha512 1119ccd955588af15906c4d50ac18949bb833cc1d48c33895d179b7fae5834591afe7307b694fba1e28f96167aae74e2ea336a244f785e59ce92295ff1bae40f
ripemd-160 507d1d2adfc3bce696d37fa234d55ba0ea50f443

161016987 as geometric shapes

Circle

Radius = n
Diameter 322033974
Circumference 1011699566.9247
Area 8.1450408007712E+16

Sphere

Radius = n
Volume 1.7486532383097E+25
Surface area 3.2580163203085E+17
Circumference 1011699566.9247

Square

Length = n
Perimeter 644067948
Area 25926470102558169
Diagonal 227712406.78785

Cube

Length = n
Surface area 155558820615349014
Volume 4.1746020994595E+24
Space diagonal 278889602.36566

Equilateral Triangle

Length = n
Perimeter 483050961
Area 1.1226490869637E+16
Altitude 139444801.18283

Triangular Pyramid

Length = n
Surface area 1.1226490869637E+16
Volume 4.9198157554723E+23
Height 75904135.595951