Properties of the Number 25078

Twenty-Five Thousand Seventy-Eight

Basics

Value: 25077 → 25078 → 25079

Parity: even

Prime: No

Previous Prime: 25073

Next Prime: 25087

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 × 12539

Divisors: 1, 2, 12539, 25078

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110000111110110

Octal: 60766

Duodecimal: 1261A

Hexadecimal: 61f6

Square: 628906084

Square Root: 158.3603485724883

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 the period of the continued fraction for sqrt(k) contains exactly 100 ones. A31868

G.f. A(x) satisfies A(x) = 1/( (1 - x) * (1 - x·A(x)) )². A379281

McKay-Thompson series of class 20E for Monster. A58554

a(n) = ∑_i=1..n LookAndSay(i). A79664

Numbers whose base-5 representation contains exactly three 0's and three 3's. A45202

Number of partitions p of n such that #m(1) = #m(2), where #m(i) = number of numbers in p that have multiplicity i. A241518

Triangle read by rows: T(n,k) is the k-th Lie-Betti number of the hypercube graph on 2^n-1 vertices, n >= 1, k >= 0. A361014

Number of length n left factors of Dyck paths having no base pyramids. A191789

a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n-k+1), where k = [ n/2 ] and s = (Fibonacci numbers). A25078

A triangle sequence of permutation Hadamard {1,-1) matrix polynomials: M(d)=Table[If[ m == n, d!/n!, 0], {n, d}, {m, d}]; m(n)=M(2ⁿ)*Hadamard(2ⁿ). A158452