161036981 (number)

161036981 is an odd 9-digits composite number following 161036980 and preceding 161036982. In scientific notation, it is written as 1.61036981 × 10^8. The sum of its digits is 35. It has a total of 4 prime factors and 12 positive divisors. There are 137712960 positive integers (up to 161036981) that are relatively prime to 161036981.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million thirty-six thousand nine hundred eighty-one

Notation

Scientific notation 1.61036981 × 10^8
Engineering notation 1.61036981 × 10^6

Prime Factorization of 161036981

Prime Factorization 7 × 7 × 461 × 7129

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 23005283
Product of the distinct prime numbers

The prime factorization of 161036981 is 7 × 7 × 461 × 7129. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 6, 97, 34, 105, 356, 9499, 9672, 56968, 27682, 36280, 517541, 9929494, 869797, 82619167, 23811125, 818152630, 35067007, 845656423, 4093504758

Basic calculations (n = 161036981)

Multiplication

n×y
n×2 322073962
n×3 483110943
n×4 644147924
n×5 805184905

Division

n÷y
n÷2 80518490.5
n÷3 53678993.666667
n÷3 40259245.25
n÷5 32207396.2

Exponentiation

ny
n2 25932909249594361
n3 4.1761574141017E+24
n4 6.725157821477E+32
n5 1.0829991123192E+41

Nth Root

y√n
2√n 12690.034712324
3√n 544.05383176378
4√n 112.65005420471
5√n 43.791026345919

Divisors of 161036981

1, 7, 49, 461, 3227, 7129, 22589, 49903, 349321, 3286469, 23005283, 161036981

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161036980
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161036981 can be divided by 12 positive divisors. The sum of these divisors (counting 161036981) is 1, the average is 0.083333333333333.

Base conversion 161036981

Base System Value
2 Binary 1001100110010011101010110101
3 Ternary 102020000112012122
4 Quaternary 21212103222311
5 Quinary 312211140411
6 Senary 23551325325
8 Octal 1146235265
10 Decimal 161036981
12 Duodecimal 45b20845
16 Hexadecimal 9993ab5
20 Vigesimal 2a69c91
36 Base36 2nvkxh

Cryptographic Hash Functions

md5 0d257b4d63fc78ab2139df68dd7c08fa
sha1 1304a52ab57f5572bb90d8eceba8510822a286b8
sha256 62db4acd62b7907a9ba8d1428caefd85fd2fba43fa6a562a5a22edf1b4a422f3
sha512 1381f9eff2c7afbf987246a6d906d39a01955d9fd40f55cd4a3aeaca6cd98a4cd57c3c3856ad234aba91d94d014e450e2c8355ccd39944ee7cf0619167301b2a
ripemd-160 19c5a53bd74f05fbec8308c51037fb8f70385edc

161036981 as geometric shapes

Circle

Radius = n
Diameter 322073962
Circumference 1011825192.9318
Area 8.1470637184736E+16

Sphere

Radius = n
Volume 1.7493047269835E+25
Surface area 3.2588254873895E+17
Circumference 1011825192.9318

Square

Length = n
Perimeter 644147924
Area 25932909249594361
Diagonal 227740682.57382

Cube

Length = n
Surface area 155597455497566166
Volume 4.1761574141017E+24
Space diagonal 278924232.9895

Equilateral Triangle

Length = n
Perimeter 483110943
Area 1.1229279102093E+16
Altitude 139462116.49475

Triangular Pyramid

Length = n
Surface area 1.1229279102093E+16
Volume 4.9216487113563E+23
Height 75913560.857939