Properties of the Number 11425

Eleven Thousand Four Hundred Twenty-Five

Basics

Value: 11424 → 11425 → 11426

Parity: odd

Prime: No

Previous Prime: 11423

Next Prime: 11437

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 457

Divisors: 1, 5, 25, 457, 2285, 11425

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10110010100001

Octal: 26241

Duodecimal: 6741

Hexadecimal: 2ca1

Square: 130530625

Square Root: 106.88779163215975

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

Numbers k such that x^k + x + 1 is irreducible over GF(2). A2475

Number of primes <= the n-th Fibonacci number. A54782

a(n) = [xⁿ] ∏_k>=1 ((1 + x^2·k)/(1 - x^2·k-1))ⁿ. A296044

Absolute values of coefficients of an elliptic function. A1941

Sum of the fourth largest parts in the partitions of n into 7 parts. A308930

Numbers n which divide A260521(n), the concatenation of the positions of the digits 9, 8, ..., 0 in the decimal representation of n, where positions are counted from the right, and 0 if a given digit does not occur. A260386

40-gonal numbers: a(n) = 38·n*(n-1)/2 + n. A261191

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

Numbers k for which the 3-adic valuations of k and σ(k) are equal, and that also satisfy Euler's criterion for odd perfect numbers (see A228058). A349755

a(n) = ∑_i=1..n i^{n - i} + (i - n)ⁱ. A62811