161761640 (number)

161761640 is an even 9-digits composite number following 161761639 and preceding 161761641. In scientific notation, it is written as 1.61761640 × 10^8. The sum of its digits is 32. It has a total of 5 prime factors and 16 positive divisors. There are 64704640 positive integers (up to 161761640) that are relatively prime to 161761640.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million seven hundred sixty-one thousand six hundred forty

Notation

Scientific notation 1.61761640 × 10^8
Engineering notation 1.61761640 × 10^6

Prime Factorization of 161761640

Prime Factorization 2 × 2 × 2 × 5 × 4044041

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40440410
Product of the distinct prime numbers

The prime factorization of 161761640 is 2 × 2 × 2 × 5 × 4044041. Since it has a total of 5 prime factors.

Most popular turbo-numbers

2, 5, 24, 58, 400, 754, 3395, 7876, 11064, 38910, 640190, 543262, 8340337, 4684126, 81363905, 34711336, 70410699, 100462503, 606094545, 464442301

Basic calculations (n = 161761640)

Multiplication

n×y
n×2 323523280
n×3 485284920
n×4 647046560
n×5 808808200

Division

n÷y
n÷2 80880820
n÷3 53920546.666667
n÷3 40440410
n÷5 32352328

Exponentiation

ny
n2 26166828175489600
n3 4.2327890392654E+24
n4 6.847028967656E+32
n5 1.1075866349355E+41

Nth Root

y√n
2√n 12718.554949364
3√n 544.8686831166
4√n 112.77657092395
5√n 43.830367117306

Divisors of 161761640

1, 2, 4, 5, 8, 10, 20, 40, 4044041, 8088082, 16176164, 20220205, 32352328, 40440410, 80880820, 161761640

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161761639
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161761640 can be divided by 16 positive divisors. The sum of these divisors (counting 161761640) is 1, the average is 0.0625.

Base conversion 161761640

Base System Value
2 Binary 1001101001000100100101101000
3 Ternary 102021101100020212
4 Quaternary 21221010211220
5 Quinary 312402333030
6 Senary 24015040252
8 Octal 1151044550
10 Decimal 161761640
12 Duodecimal 46210088
16 Hexadecimal 9a44968
20 Vigesimal 2ab0420
36 Base36 2ob42w

Cryptographic Hash Functions

md5 29f67de0121518d479285343bdc1e04c
sha1 deedad7a6bca168f048906fa8f917bccc2181da2
sha256 ac58dcb82650a8bbc1b9baa789ece303c5b43fb9b9538781beef380f5a8ad0ba
sha512 cb640afbe21657eda874d40ce8a70332ab415c6b950f2621b2c79c7c3fea4c8782885b5ad4306c64fc255007b169904a1860cebfac5ab92c16bf514cebadd5e9
ripemd-160 f8e0ed9c470b0e5d862d11b4bc6999a46e61fa9d

161761640 as geometric shapes

Circle

Radius = n
Diameter 323523280
Circumference 1016378359.7133
Area 8.2205515163865E+16

Sphere

Radius = n
Volume 1.7730265266602E+25
Surface area 3.2882206065546E+17
Circumference 1016378359.7133

Square

Length = n
Perimeter 647046560
Area 26166828175489600
Diagonal 228765505.15971

Cube

Length = n
Surface area 157000969052937600
Volume 4.2327890392654E+24
Space diagonal 280179379.19567

Equilateral Triangle

Length = n
Perimeter 485284920
Area 1.1330568968218E+16
Altitude 140089689.59783

Triangular Pyramid

Length = n
Surface area 1.1330568968218E+16
Volume 4.9883897216611E+23
Height 76255168.386571