Properties of the Number -15397

Fifteen Thousand Three Hundred Ninety-Seven

Basics

Value: -15398 → -15397 → -15396

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 89 × 173

Divisors: 1, 89, 173, 15397

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: -11110000100101

Octal: -36045

Duodecimal: -8AB1

Hexadecimal: -3c25

Square: 237067609

Square Root: 124.08464852672147

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

a(n) = 2ⁿ - Fibonacci(n+2). A8466

Triangle T(n,k), n>=2, 0<=k<=n-2, read by rows: numbers of binary words of length n containing at least one subword 10^k1 and no subwords 10ⁱ1 with i<k. A143291

a(n) = ∑_i=0..n ∑_j=0..n T(i,j), T given by A026780. A26789

Numbers that are the sum of eight fourth powers in seven or more ways. A345582

Numbers that are the sum of eight fourth powers in exactly seven ways. A345839

Lucky numbers with size of gaps equal to 20 (lower terms). A31902

Positive numbers y such that y² is of the form x²+(x+577)² with integer x. A159626

Number of set partitions of [n] into m blocks such that at least one pair of distinct cyclically consecutive blocks (b,c) = (b,(b mod m)+1) exists having no pair of numbers (i,j) = (i,(i mod n)+1) with i member of b and j member of c. A271273

(n - φ(n)) | σ(n) for composite n not congruent to 2 (mod 4). A55164

Semiprimes in A103374. A103394