Properties of the Number 42451

Forty-Two Thousand Four Hundred Fifty-One

Basics

Value: 42450 → 42451 → 42452

Parity: odd

Prime: Yes

Previous Prime: 42443

Next Prime: 42457

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 42451

Divisors: 1, 42451

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1010010111010011

Octal: 122723

Duodecimal: 20697

Hexadecimal: a5d3

Square: 1802087401

Square Root: 206.03640455026388

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

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[6, 4,2]; short d-string notation of pattern = [642]. A78855

Expansion of (1 - 3·x) / (1 - 5·x + 3·x²). A52961

Number A(n,k) of tilings of a k X n rectangle using polyominoes of shape I; square array A(n,k), n>=0, k>=0, read by antidiagonals. A254414

Primes of the form n² + 15. A243450

Primes p such that x⁵ = 2 has a solution mod p, but x^5² = 2 has no solution mod p. A70182

Primes p such that the differences between the 5 consecutive primes starting with p are (6,4,2,4). A78961

Number of nondecreasing -n..n vectors of length 3 whose dot product with some lexicographically greater than or equal to nondecreasing -n..n vector equals 3. A226424

Artiads (A001583) congruent to 1 mod 50 and having 2 as a quintic residue. A270799

Number of n X 4 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,0) or (-1,1) and new values introduced in order 0..2. A275179

Primes for which the concatenation of the digits in the even positions and the concatenation of the digits in the odd positions are squares. A275797