16991681 (number)

16991681 is an odd 8-digits composite number following 16991680 and preceding 16991682. In scientific notation, it is written as 1.6991681 × 10^7. The sum of its digits is 41. It has a total of 4 prime factors and 12 positive divisors. There are 13797000 positive integers (up to 16991681) that are relatively prime to 16991681.

Interesting facts

Basic properties

Name

Name sixteen million nine hundred ninety-one thousand six hundred eighty-one

Notation

Scientific notation 1.6991681 × 10^7
Engineering notation 1.6991681 × 10^6

Prime Factorization of 16991681

Prime Factorization 7 × 19 × 7 × 18251

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 2427383
Product of the distinct prime numbers

The prime factorization of 16991681 is 7 × 19 × 7 × 18251. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 56, 34, 575, 197, 3138, 2247, 9692, 21647, 237435, 462255, 8652063, 7375806, 91393649, 85364254, 489056317, 40726106, 6714719499, 2792330073

Basic calculations (n = 16991681)

Multiplication

n×y
n×2 33983362
n×3 50975043
n×4 67966724
n×5 84958405

Division

n÷y
n÷2 8495840.5
n÷3 5663893.6666667
n÷3 4247920.25
n÷5 3398336.2

Exponentiation

ny
n2 288717223205761
n3 4.9057909559181E+21
n4 8.3357634975645E+28
n5 1.4163863424206E+36

Nth Root

y√n
2√n 4122.096675237
3√n 257.08621008216
4√n 64.203556562211
5√n 27.928478021378

Divisors of 16991681

1, 7, 19, 49, 133, 931, 18251, 127757, 346769, 894299, 2427383, 16991681

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 -16991680
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 16991681 can be divided by 12 positive divisors. The sum of these divisors (counting 16991681) is 1, the average is 0.083333333333333.

Base conversion 16991681

Base System Value
2 Binary 1000000110100010111000001
3 Ternary 1011222021012112
4 Quaternary 1000310113001
5 Quinary 13322213211
6 Senary 1404105105
8 Octal 100642701
10 Decimal 16991681
12 Duodecimal 5835195
16 Hexadecimal 10345c1
20 Vigesimal 563j41
36 Base36 a46v5

Cryptographic Hash Functions

md5 44b9baa328524ffceba80ac6e5ce7634
sha1 403e0fe9771325151de83147bc1b81e81e2099f8
sha256 2f1e86ae6514c2c102f768f9ce861b05f478e1db46743d4bb30cecb154073cc8
sha512 e2dfb51629393563c45a150f24299d84615e84a0730b1857fde7ac41419587c3ed01e7ff147e05a4911ce8abd521bba4546a6aaf8472d2e4d068eb0ac1ac00ba
ripemd-160 b695fdc2ed32339a53ed5f0ceee174d4c6d9c6a1

16991681 as geometric shapes

Circle

Radius = n
Diameter 33983362
Circumference 106761880.40348
Area 9.0703190738806E+14

Sphere

Radius = n
Volume 2.0549329102879E+22
Surface area 3.6281276295523E+15
Circumference 106761880.40348

Square

Length = n
Perimeter 67966724
Area 288717223205761
Diagonal 24029865.717717

Cube

Length = n
Surface area 1732303339234566
Volume 4.9057909559181E+21
Space diagonal 29430454.798003

Equilateral Triangle

Length = n
Perimeter 50975043
Area 1.2501822490315E+14
Altitude 14715227.399001

Triangular Pyramid

Length = n
Surface area 1.2501822490315E+14
Volume 5.7815300866889E+20
Height 8009955.2392391