Properties of the Number 43125

Forty-Three Thousand One Hundred Twenty-Five

Basics

Value: 43124 → 43125 → 43126

Parity: odd

Prime: No

Previous Prime: 43117

Next Prime: 43133

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 ⁴ × 23

Divisors: 1, 3, 5, 15, 23, 25, 69, 75, 115, 125

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010100001110101

Octal: 124165

Duodecimal: 20B59

Hexadecimal: a875

Square: 1859765625

Square Root: 207.66559657295187

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

Partial sums of A299277. A299278

Number of unlabeled maximal independent sets in the n-cycle graph. A127687

Expansion of ∏_n>=1 (1 + (25·x)ⁿ)^1/5. A303125

Triangle read by rows: number of permutations of length n that require exactly k removals from the beginning to become heapable. A390368

Number of irreducible representations of the symmetric group S_n such that their degree is divisible by 3. A61569

Numbers with 5 distinct digits {1,2,3,4,5} such that all adjacent digits (as well as first and last digits) are coprime. A104972

Array read by rows in which the n-th row contains the multiples of n in increasing order using all the digits of first n numbers. A78189

Numbers k such that 10^k + 5·R_k + 4 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A102938

Odd numbers k such that k/(1+A347381(k)) obtains record values, where A347381 gives the distance from n to the nearest common ancestor of n and σ(n) in the Doudna-tree. A386423

a(n) is the smallest number k for which the symmetric representation of σ for k, SRS(k), has n parts and each i-th part up to the diagonal is unimodal of width i. A392097