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Properties of the Number 12445

Twelve Thousand Four Hundred Forty-Five

Basics

Value: 12444 → 12445 → 12446

Parity: odd

Prime: No

Previous Prime: 12437

Next Prime: 12451

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5 × 19 × 131

Divisors: 1, 5, 19, 95, 131, 655, 2489, 12445

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 11000010011101

Octal: 30235

Duodecimal: 7251

Hexadecimal: 309d

Square: 154878025

Square Root: 111.55716023635597

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 permutations (p(1), p(2), ..., p(n)) satisfying -k <= p(i)-i <= r and p(i)-i not in the set I, i=1..n, with k=2, r=6, I={-1,1,2,3,4,5}. A224808
Number of parts that are visible in one of the three views of the section model of partitions version "tree" with n sections. A194805
a(n) = ∑d∣n σ(n/d)*d3. A27847
Number of partitions p of n such that the number of numbers having multiplicity 1 in p is a part or the number of numbers having multiplicity > 1 is a part. A239737
Number of partitions p of n such that (number of even numbers in p) < 2*(number of odd numbers in p). A241641
Indices of 9-gonal numbers which are also heptagonal. A48919
Number of partitions of n such that (greatest part) <= (multiplicity of least part). A240182
Number of compositions of n that are the run-sums of some other composition. A354910
Numbers n such that zero is never reached by iterating the mapping k -> abs(reverse(lpd(k))-reverse(gpf(k))). lpd(k) is the largest proper divisor and gpf(k) is the largest prime factor of k. A76425
Sets of digits such that the product of the digits is 10 times the sum of the digits. Each set is arranged as a number with nondecreasing digits. A124694