Properties of the Number -15457

Fifteen Thousand Four Hundred Fifty-Seven

Basics

Value: -15458 → -15457 → -15456

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 13 × 29 × 41

Divisors: 1, 13, 29, 41, 377, 533, 1189, 15457

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110001100001

Octal: -36141

Duodecimal: -8B41

Hexadecimal: -3c61

Square: 238918849

Square Root: 124.32618388738553

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

Pseudoprimes to base 3. A5935

Nonprimes k such that 3^k == 3 (mod k). A122780

Euler pseudoprimes to base 3: composite integers such that abs(3^{(n - 1}/2)) == 1 mod n. A262051

Base-3 Euler-Jacobi pseudoprimes. A48950

Square table, read by antidiagonals, where row e.g.f.s, R(n,x), satisfy: d/dx log( R(n,x) ) = R(n+1,x)ⁿ⁺¹ with R(n,0) = 1; that is, the logarithmic derivative of the e.g.f. of row n equals the e.g.f. of row n+1 to the n+1 power, for n>=0. A145085

a(n) = 15n² + 3n + 1. A165806

Odd composite integers m such that A006497(m) == 3 (mod m). A335669

Composite numbers k == 1, 11 (mod 12) such that 3^(k-1/2) == 1 (mod k). A375917

Number of partitions of 2n-set in which number of blocks of size k is even (or zero) for every k. A130219

Odd composite integers m such that A087130(m) == 5 (mod m). A335671