231388891 (number)

231388891 is an odd 9-digits composite number following 231388890 and preceding 231388892. In scientific notation, it is written as 2.31388891 × 10^8. The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors. There are 223891080 positive integers (up to 231388891) that are relatively prime to 231388891.

Interesting facts

Basic properties

Name

Name two hundred thirty-one million three hundred eighty-eight thousand eight hundred ninety-one

Notation

Scientific notation 2.31388891 × 10^8
Engineering notation 2.31388891 × 10^6

Prime Factorization of 231388891

Prime Factorization 107 × 43 × 50291

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 231388891
Product of the distinct prime numbers

The prime factorization of 231388891 is 107 × 43 × 50291. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 2, 93, 4, 993, 545, 1950, 3397, 47427, 88142, 620572, 626329, 5231954, 3871027, 69081473, 94144931, 228851991, 385482936, 8451449435, 5022524755

Basic calculations (n = 231388891)

Multiplication

n×y
n×2 462777782
n×3 694166673
n×4 925555564
n×5 1156944455

Division

n÷y
n÷2 115694445.5
n÷3 77129630.333333
n÷3 57847222.75
n÷5 46277778.2

Exponentiation

ny
n2 53540818878209881
n3 1.2388750703461E+25
n4 2.8666192861493E+33
n5 6.6330385754129E+41

Nth Root

y√n
2√n 15211.472348198
3√n 613.92337335576
4√n 123.33479779932
5√n 47.083474178632

Divisors of 231388891

1, 43, 107, 4601, 50291, 2162513, 5381137, 231388891

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -231388890
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 231388891 can be divided by 8 positive divisors. The sum of these divisors (counting 231388891) is 1, the average is 0.125.

Base conversion 231388891

Base System Value
2 Binary 1101110010101011011011011011
3 Ternary 121010101202212221
4 Quaternary 31302223123123
5 Quinary 433213421031
6 Senary 34543244511
8 Octal 1562533333
10 Decimal 231388891
12 Duodecimal 655a9737
16 Hexadecimal dcab6db
20 Vigesimal 3c63c4b
36 Base36 3trgt7

Cryptographic Hash Functions

md5 6f0f4138dd278fa4fdec76b1b4fd01aa
sha1 6477ea773198efddff4a6cf96e0b1c835c2e5b44
sha256 9caefd1ba69d4b0f04bd79209961a201565af7a14ef5b6970a40651423651ab4
sha512 936d4bf5ae416f9ae75b0806874190613dbde87aa0fc568a90fae7348c8a6e11302dc7bdc69429f838a3dc458181f7e8fdd622c1c9f9be7679550d3ac188c1db
ripemd-160 8515a6a8f3664ff93de4010875f21272717c245f

231388891 as geometric shapes

Circle

Radius = n
Diameter 462777782
Circumference 1453859280.1758
Area 1.6820344325497E+17

Sphere

Radius = n
Volume 5.1893877596197E+25
Surface area 6.7281377301986E+17
Circumference 1453859280.1758

Square

Length = n
Perimeter 925555564
Area 53540818878209881
Diagonal 327233307.83467

Cube

Length = n
Surface area 321244913269259286
Volume 1.2388750703461E+25
Space diagonal 400777315.51902

Equilateral Triangle

Length = n
Perimeter 694166673
Area 2.3183854643976E+16
Altitude 200388657.75951

Triangular Pyramid

Length = n
Surface area 2.3183854643976E+16
Volume 1.4600282721411E+24
Height 109077769.27822