Properties of the Number 24990

Twenty-Four Thousand Nine Hundred Ninety

Basics

Value: 24989 → 24990 → 24991

Parity: even

Prime: No

Previous Prime: 24989

Next Prime: 25013

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 × 7 ² × 17

Divisors: 1, 2, 3, 5, 6, 7, 10, 14, 15, 17

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110000110011110

Octal: 60636

Duodecimal: 12566

Hexadecimal: 619e

Square: 624500100

Square Root: 158.082257068907

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

Triangle read by rows: T(n,k) = number of k-covers of a labeled n-set, k=1..2ⁿ-1. A55154

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 1 and 1 0 0 horizontally and 0 0 1 and 1 0 1 vertically. A209650

List of codewords in binary lexicode with Hamming distance 7 written as decimal numbers. A75937

Numbers k such that ω(k) = 5 and the largest prime factor of k equals the sum of its remaining distinct prime factors, where ω(k) = A001221(k). A383729

Numbers n for which 2 < A257993(A276086(A276086(n))) < A257993(n), where A276086 converts the primorial base expansion of n into its prime product form, and A257993 returns the index of the least prime not present in its argument. A328762

a(n) = 7·n*(2·n + 1). A195026

Number of (w,x,y,z) with all terms in {1,...,n} and w<2x and y<=3z. A212509

Unitary practical numbers that are nonsquarefree. A287173

Integers k such that ω(k) = ω(k-1) + ω(k-2) + ω(k-3), where ω(n) is the number of distinct prime factors of n. A76252

Number of 4-block covers of a labeled n-set. A95153