Properties of the Number 27730

Twenty-Seven Thousand Seven Hundred Thirty

Basics

Value: 27729 → 27730 → 27731

Parity: even

Prime: No

Previous Prime: 27701

Next Prime: 27733

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 47 × 59

Divisors: 1, 2, 5, 10, 47, 59, 94, 118, 235, 295

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 110110001010010

Octal: 66122

Duodecimal: 1406A

Hexadecimal: 6c52

Square: 768952900

Square Root: 166.5232716469383

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

The intersection of hexagonal numbers (A000384) and centered 9-gonal numbers (A060544). A272399

a(n+1) = a(n) + (if a(n) is odd then (next odd square) else (next even square)), a(0) = 1. A116955

Expansion of (1+x)³/((1+x)³+x⁴). A99531

Number of distinct functions from a set with nⁿ elements to itself that can be defined naturally (in n) by typed λ-calculus expressions. A65500

Triangular numbers that are the product of four distinct primes. A333771

a(n) = ∑_i=1..n LookAndSay(i). A79664

Numbers of the form prime(n) + prime(n+1) - 2 that are also triangular numbers, T(k) = k(k+1)/2. A110891

Triangular numbers equal to the sum of a prime number with its index. A115886

Numbers k such that 459·2^k+1 is prime. A323199

Number of partitions of n into parts not of the form 19k, 19k+7 or 19k-7. Also number of partitions with at most 6 parts of size 1 and differences between parts at distance 8 are greater than 1. A35976