161940897 (number)

161940897 is an odd 9-digits composite number following 161940896 and preceding 161940898. In scientific notation, it is written as 1.61940897 × 10^8. The sum of its digits is 45. It has a total of 5 prime factors and 32 positive divisors. There are 102777984 positive integers (up to 161940897) that are relatively prime to 161940897.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million nine hundred forty thousand eight hundred ninety-seven

Notation

Scientific notation 1.61940897 × 10^8
Engineering notation 1.61940897 × 10^6

Prime Factorization of 161940897

Prime Factorization 9 × 3 × 37 × 47 × 3449

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 161940897
Product of the distinct prime numbers

The prime factorization of 161940897 is 9 × 3 × 37 × 47 × 3449. Since it has a total of 5 prime factors.

Most popular turbo-numbers

4, 2, 65, 1, 625, 841, 2927, 6160, 61104, 19071, 443880, 442018, 2950724, 7582003, 76443609, 12321393, 941548783, 969189573, 6181760092, 7241436647

Basic calculations (n = 161940897)

Multiplication

n×y
n×2 323881794
n×3 485822691
n×4 647763588
n×5 809704485

Division

n÷y
n÷2 80970448.5
n÷3 53980299
n÷3 40485224.25
n÷5 32388179.4

Exponentiation

ny
n2 26224854121164609
n3 4.2468764000755E+24
n4 6.8774297367636E+32
n5 1.113737140626E+41

Nth Root

y√n
2√n 12725.600064437
3√n 545.06987516955
4√n 112.80780143428
5√n 43.840076983955

Divisors of 161940897

1, 3, 9, 27, 37, 47, 111, 141, 333, 423, 999, 1269, 1739, 3449, 5217, 10347, 15651, 31041, 46953, 93123, 127613, 162103, 382839, 486309, 1148517, 1458927, 3445551, 4376781, 5997811, 17993433, 53980299, 161940897

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 -161940896
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 161940897 can be divided by 32 positive divisors. The sum of these divisors (counting 161940897) is 1, the average is 0.03125.

Base conversion 161940897

Base System Value
2 Binary 1001101001110000010110100001
3 Ternary 102021201110011000
4 Quaternary 21221300112201
5 Quinary 312424102042
6 Senary 24022542213
8 Octal 1151602641
10 Decimal 161940897
12 Duodecimal 46297969
16 Hexadecimal 9a705a1
20 Vigesimal 2ac2c4h
36 Base36 2oeye9

Cryptographic Hash Functions

md5 3989019758bff02a19299d26d760d081
sha1 2e07e6380ce75fc9f9f658efb302d1271e55fab9
sha256 0362e88a2119fa5c8db9ffc436eb9381ec4da9d7122175fd4108d541a04cdd35
sha512 e636e3fa0383713399391514676490694a04efdb67c64092dc81f05b6cad54a6a27ab852a32728ef3456306804f6d0466cb2e81b5dcb02650a32f418ad8769b6
ripemd-160 d34e4ee554681571c2b6c4f8a716e57d045f87a3

161940897 as geometric shapes

Circle

Radius = n
Diameter 323881794
Circumference 1017504664.6619
Area 8.2387809048515E+16

Sphere

Radius = n
Volume 1.7789274265575E+25
Surface area 3.2955123619406E+17
Circumference 1017504664.6619

Square

Length = n
Perimeter 647763588
Area 26224854121164609
Diagonal 229019012.84026

Cube

Length = n
Surface area 157349124726987654
Volume 4.2468764000755E+24
Space diagonal 280489861.42728

Equilateral Triangle

Length = n
Perimeter 485822691
Area 1.1355694939735E+16
Altitude 140244930.71364

Triangular Pyramid

Length = n
Surface area 1.1355694939735E+16
Volume 5.0049918355909E+23
Height 76339670.946755