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Properties of the Number 493

Four Hundred Ninety-Three

Basics

Value: 492 → 493 → 494

Parity: odd

Prime: No

Previous Prime: 491

Next Prime: 499

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 17 × 29

Divisors: 1, 17, 29, 493

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 111101101

Octal: 755

Duodecimal: 351

Hexadecimal: 1ed

Square: 243049

Square Root: 22.20360331117452

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

Number of partitions of n into parts 5k+2 or 5k+3. A3106
Number of partitions of n into divisors of n. A18818
Brilliant numbers: semiprimes (products of two primes, A001358) whose prime factors have the same number of decimal digits. A78972
Sieve of Eratosthenes arranged as an array and read by antidiagonals as A(1,1), A(1,2), A(2,1), A(1,3), A(2,2), A(3,1), ... A83221
Positive integers which apparently never result in a palindrome under repeated applications of the function A056964(x) = x + (x with digits reversed). A23108
a(n) = n*(n+5)/2. A55998
p-INVERT of the positive integers, where p(S) = 1 - S2. A290890
Nonprime numbers k such that binomial(k+p,k) mod k = 1, where p=10. A133630
Sieve of Eratosthenes arranged as an array and read by antidiagonals in the up direction; n-th row has property that smallest prime factor is prime(n). A83140
[s(k)-s(j)]/2, where the pairs (k,j) are given by A205837 and A205838. A205840

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