Properties of the Number 1634

One Thousand Six Hundred Thirty-Four

Basics

Value: 1633 → 1634 → 1635

Parity: even

Prime: No

Previous Prime: 1627

Next Prime: 1637

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 × 19 × 43

Divisors: 1, 2, 19, 38, 43, 86, 817, 1634

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001100010

Octal: 3142

Duodecimal: B42

Hexadecimal: 662

Square: 2669956

Square Root: 40.422765862815474

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: Yes

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

Armstrong (or pluperfect, or Plus Perfect, or narcissistic) numbers: m-digit nonnegative numbers equal to sum of the m-th powers of their digits. A5188

Numbers k such that k and k+1 have same sum of divisors. A2961

Coordination sequence for "reo-e" 3D uniform tiling. A299281

Fifth spoke of a hexagonal spiral. A56109

Number of integer compositions of n with all distinct runs. A351013

Perfect Digital Invariants: numbers that are the sum of some fixed power of their digits. A23052

a(n) = n*(n+5). A28557

Smallest n-th order perfect digital invariant or PDI: smallest number > 1 equal to sum of n-th powers of its digits, or 0 if no such number exists. A3321

Numbers k such that k and k+1 have the same sum of unitary divisors (A034448). A64125

Numbers k such that bsigma(k) = bsigma(k+1), where bsigma(k) is the sum of the bi-unitary divisors of k (A188999). A293183