161005988 (number)

161005988 is an even 9-digits composite number following 161005987 and preceding 161005989. In scientific notation, it is written as 1.61005988 × 10^8. The sum of its digits is 38. It has a total of 6 prime factors and 36 positive divisors. There are 67552320 positive integers (up to 161005988) that are relatively prime to 161005988.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million five thousand nine hundred eighty-eight

Notation

Scientific notation 1.61005988 × 10^8
Engineering notation 1.61005988 × 10^6

Prime Factorization of 161005988

Prime Factorization 2 × 2 × 13 × 11 × 11 × 25589

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 7318454
Product of the distinct prime numbers

The prime factorization of 161005988 is 2 × 2 × 13 × 11 × 11 × 25589. Since it has a total of 6 prime factors.

Most popular turbo-numbers

6, 1, 32, 10, 629, 68, 62, 8071, 75410, 63876, 423288, 178095, 77573, 8114927, 36523128, 19796211, 110959964, 190368152, 7756366878, 2229678776

Basic calculations (n = 161005988)

Multiplication

n×y
n×2 322011976
n×3 483017964
n×4 644023952
n×5 805029940

Division

n÷y
n÷2 80502994
n÷3 53668662.666667
n÷3 40251497
n÷5 32201197.6

Exponentiation

ny
n2 25922928171856144
n3 4.1737466621627E+24
n4 6.7199820500321E+32
n5 1.0819573493077E+41

Nth Root

y√n
2√n 12688.813498511
3√n 544.01892685735
4√n 112.64463368715
5√n 43.7893406216

Divisors of 161005988

1, 2, 4, 11, 13, 22, 26, 44, 52, 121, 143, 242, 286, 484, 572, 1573, 3146, 6292, 25589, 51178, 102356, 281479, 332657, 562958, 665314, 1125916, 1330628, 3096269, 3659227, 6192538, 7318454, 12385076, 14636908, 40251497, 80502994, 161005988

36 divisors

τ Total Divisors 36
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161005987
Sum of the proper positive divisors of n
A Arithmetic Mean 0.027777777777778
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 36
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161005988 can be divided by 36 positive divisors. The sum of these divisors (counting 161005988) is 1, the average is 0.027777777777778.

Base conversion 161005988

Base System Value
2 Binary 1001100110001100000110100100
3 Ternary 102012221221200202
4 Quaternary 21212030012210
5 Quinary 312204142423
6 Senary 23550530032
8 Octal 1146140644
10 Decimal 161005988
12 Duodecimal 45b06918
16 Hexadecimal 998c1a4
20 Vigesimal 2a65ej8
36 Base36 2nux0k

Cryptographic Hash Functions

md5 04188e32c9cc93d86f0fe1fa9f8808e7
sha1 f983101d51855376891cf5492b67be384077fd43
sha256 1b70988697e676d14031ce9d3658c218b2b7591b08d17a6fa26255d8147ce2fb
sha512 5b39052bbed8e5988ca37552b2476ba4ef798acc0d49d20a87efc97fe2d23451861f13a32554a5badb312c6c5fa9c313f01442db4a03422929046dc8fadab1b1
ripemd-160 76e2cf9b9f8def7641c0e724d8ca8bf9a60c0a07

161005988 as geometric shapes

Circle

Radius = n
Diameter 322011976
Circumference 1011630458.1695
Area 8.1439280704239E+16

Sphere

Radius = n
Volume 1.7482949135727E+25
Surface area 3.2575712281696E+17
Circumference 1011630458.1695

Square

Length = n
Perimeter 644023952
Area 25922928171856144
Diagonal 227696851.85288

Cube

Length = n
Surface area 155537569031136864
Volume 4.1737466621627E+24
Space diagonal 278870551.53882

Equilateral Triangle

Length = n
Perimeter 483017964
Area 1.1224957168653E+16
Altitude 139435275.76941

Triangular Pyramid

Length = n
Surface area 1.1224957168653E+16
Volume 4.91880761295E+23
Height 75898950.617627