Properties of the Number 14780

Fourteen Thousand Seven Hundred Eighty

Basics

Value: 14779 → 14780 → 14781

Parity: even

Prime: No

Previous Prime: 14779

Next Prime: 14783

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 739

Divisors: 1, 2, 4, 5, 10, 20, 739, 1478, 2956, 3695

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11100110111100

Octal: 34674

Duodecimal: 8678

Hexadecimal: 39bc

Square: 218448400

Square Root: 121.57302332343306

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

Numbers k that divide the (right) concatenation of all numbers <= k written in base 2 (most significant digit on left). A29447

Number of partitions of n into parts not a multiple of 7. Also number of partitions with at most 6 parts of size 1 and differences between parts at distance 9 are greater than 1. A35985

The number of partitions of n in which at least one part is a multiple of 3. A295341

Composite numbers with properties that its digits (which may appear with multiplicity) may not appear in any of its factors (wherein the digits may also appear with multiplicity) and the combined digits of the product and the factors must have at least one of each of the ten digits. A370972

Number of ways to fill a Young diagram with positive integers summing to n such that all rows and columns are strictly increasing. A323451

Number of Sidon subsets of {1,...,n} of size 4. A241688

Number of upper Wythoff primes (A095281) in range ]2ⁿ,2ⁿ⁺¹]. A95291

Numbers k such that 7·10^k + 43 is prime. A274692

Numbers having four 2's in base 9. A43464

Number of partitions of n such that (number of distinct parts) = multiplicity of the least part. A239962