Properties of the Number 42925

Forty-Two Thousand Nine Hundred Twenty-Five

Basics

Value: 42924 → 42925 → 42926

Parity: odd

Prime: No

Previous Prime: 42923

Next Prime: 42929

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 ² × 17 × 101

Divisors: 1, 5, 17, 25, 85, 101, 425, 505, 1717, 2525

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010011110101101

Octal: 123655

Duodecimal: 20A11

Hexadecimal: a7ad

Square: 1842555625

Square Root: 207.18349355100662

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

Consider the base-6 Kaprekar map n->K(n) defined in A165051. Sequence gives numbers belonging to cycles, including fixed points. A165056

List of fixed points of the base-6 Kaprekar map A165051. A165055

Smallest member of cycle corresponding to n-th term of A165068. A165069

Consider the base-6 Kaprekar map n->K(n) defined in A165051. Sequence gives least elements of each cycle, including fixed points. A165060

Numbers k such that σ(2·k-1) is a prime p. A247820

1/24 of product of three numbers: n-th prime, previous and following number. A127922

Area ar/6 (divided by 6) of primitive Pythagorean triangles such that perimeters are Averages of twin prime pairs, q=p+1, a=q²-p², c=q²+p², b=2·p*q, ar=a·b/2; s=a+b+c, s-+1 are primes. A155177

Triangle read by rows, T(n, 1) = 1 and T(n,k) = q^k*T(n-1, k) + T(n-1, k-1) for 2 <= k <= n, n >= 1, with q=2. A176242

a(n) = n*(2·n + 1)*(4·n + 1)/3. A258582

Odd square pyramidal numbers. A15221