Properties of the Number 16513

Sixteen Thousand Five Hundred Thirteen

Basics

Value: 16512 → 16513 → 16514

Parity: odd

Prime: No

Previous Prime: 16493

Next Prime: 16519

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 ² × 337

Divisors: 1, 7, 49, 337, 2359, 16513

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000010000001

Octal: 40201

Duodecimal: 9681

Hexadecimal: 4081

Square: 272679169

Square Root: 128.50291825480073

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

a(n) = 1ⁿ + 2ⁿ + 4ⁿ. A1576

Number of primitive subsequences of {1, 2, ..., n}. A51026

a(n) = sigma₇(n), the sum of the 7th powers of the divisors of n. A13955

Numbers that are the sum of 3 positive 7th powers. A3370

Array read by downwards antidiagonals: sigma_k(n) for n >= 1, k >= 0. A109974

Numbers of the form (2^m·r-1)/(2^r-1) for positive integers m, r. A64896

Numbers k that divide 8^k - 1. A14949

Number of integer compositions of n whose leaders of strictly increasing runs are themselves strictly increasing. A374688

Numbers k > 1 such that, in base 8, k and k² contain the same digits in the same proportion. A61662

Base 8 perfect digital invariants (written in base 10): numbers equal to the sum of the k-th powers of their base-8 digits, for some k. A162231