Properties of the Number 13475

Thirteen Thousand Four Hundred Seventy-Five

Basics

Value: 13474 → 13475 → 13476

Parity: odd

Prime: No

Previous Prime: 13469

Next Prime: 13477

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 ² × 7 ² × 11

Divisors: 1, 5, 7, 11, 25, 35, 49, 55, 77, 175

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11010010100011

Octal: 32243

Duodecimal: 796B

Hexadecimal: 34a3

Square: 181575625

Square Root: 116.081867662439

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Logarithmic transform of Fibonacci numbers. A7553

a(n) is the cototient of n³. A53192

Number of partitions of n such that the number of even parts is a part and the number of odd parts is a part. A240575

Fifth column of the (1,4)-Pascal triangle A095666. A95667

a(n) = A059895(A260443(n), A260443(1+n)). A284578

Odd composite numbers divisible by the sum of their prime factors (counted with multiplicity). A46347

Denominator of ∑_k=0..n 1/binomial(n,k)². A100517

Square root of the largest square dividing prime factorization representation of the n-th Stern polynomial: a(n) = A000188(A260443(n)). A283983

Numbers n=2·k-1 where ∑_j=1..k (-1)^j+1 * d(2·j-1) achieves a new negative record, with d(n) = number of divisors of n (A000005). A318738

Numbers k congruent to 1 or 5 mod 6, for which A064989(A064989(σ(k))) > A064989(A064989(k)), where A064989 shifts the prime factorization one step towards lower primes, and σ is the sum of divisors function. A348754