Properties of the Number 1826

One Thousand Eight Hundred Twenty-Six

Basics

Value: 1825 → 1826 → 1827

Parity: even

Prime: No

Previous Prime: 1823

Next Prime: 1831

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 11 × 83

Divisors: 1, 2, 11, 22, 83, 166, 913, 1826

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11100100010

Octal: 3442

Duodecimal: 1082

Hexadecimal: 722

Square: 3334276

Square Root: 42.731721238442994

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

First spoke of a hexagonal spiral. A56105

a(n) = least k >= 1 such that the remainder when 6^k is divided by k is n. A127816

a(1) = 1; thereafter a(n+1) = a(n) + product of nonzero digits of a(n). A63108

Sum of third powers of four consecutive primes. A133525

10-gonal (or decagonal) pyramidal numbers: a(n) = n*(n + 1)*(8·n - 5)/6. A7585

Number of distinct values taken by 5⁵^...⁵ (with n 5's and parentheses inserted in all possible ways). A145545

Numbers m having the same sum of divisors as m+20 has. A181647

Sum T(n,k) over all partitions λ of n into k distinct parts of ∏_i:λ prime(i); triangle T(n,k), n>=0, 0<=k<=A003056(n), read by rows. A258323

Number of integer partitions of n such that (length) * (maximum) <= 2·n. A361851

Number of topologies on n labeled points satisfying axioms T₀-T₄. A6057