Properties of the Number 16181

Sixteen Thousand One Hundred Eighty-One

Basics

Value: 16180 → 16181 → 16182

Parity: odd

Prime: No

Previous Prime: 16141

Next Prime: 16183

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 11 × 1471

Divisors: 1, 11, 1471, 16181

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11111100110101

Octal: 37465

Duodecimal: 9445

Hexadecimal: 3f35

Square: 261824761

Square Root: 127.20455966670377

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) is the largest integer that can be written with n digits in base 3/2. A304025

Theorems from propositional calculus, translated into decimal digits. A101273

A self-generating sequence: every positive integer occurs as a(i)-a(j) for a unique pair i,j. A1856

Nonprime numbers with all divisors starting and ending with digit 1. A208261

a(n) = 1331·n - 1122. A157441

Composite numbers k with its divisors having the property that the last digit of every divisor is the same as the first digit of the next divisor. A307858

Records in A098550. A248647

Strong pseudoprimes to base 45. A20271

Least happy number with next happy number of distance n. A193573

Least inverse of A073454: Smallest m such that m divided by the primes up to m have exactly n repeated residues. A274320