Properties of the Number 13490

Thirteen Thousand Four Hundred Ninety

Basics

Value: 13489 → 13490 → 13491

Parity: even

Prime: No

Previous Prime: 13487

Next Prime: 13499

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 × 5 × 19 × 71

Divisors: 1, 2, 5, 10, 19, 38, 71, 95, 142, 190

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11010010110010

Octal: 32262

Duodecimal: 7982

Hexadecimal: 34b2

Square: 181980100

Square Root: 116.14645926587689

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

A051838 gives numbers m such that the sum of first m primes divides the product of the first m primes. This sequence gives corresponding values of the sum of first m primes. A140763

The number of even prime gaps g, satisfying g == 0 (mod 6), out of the first 2ⁿ even prime gaps. A340948

Number of ordered triples (w,x,y) with all terms in {1,...,n} and w³ >= x³ + y³. A211651

Sum of the first 2n+1 primes. A109723

Pentagonal numbers which are the sum of the first k primes, for some k >= 0. A364691

Numbers whose square is a permutational number A134640. A134742

Indices where the cumulative sum of sin(2k+1)^2k+1 reaches a record high value. A387706

Pentagonal numbers (A000326) whose digit reversal is a prime. A115707

Pentagonal numbers divisible by 5. A117793

Numbers in A007504 such that ω(a(n)) = ω(a(n)) = 4. A264887