Properties of the Number -143840

One Hundred Forty-Three Thousand Eight Hundred Forty

Basics

Value: -143841 → -143840 → -143839

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ⁵ × 5 × 29 × 31

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 29, 31

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -100011000111100000

Octal: -430740

Duodecimal: -6B2A8

Hexadecimal: -231e0

Square: 20689945600

Square Root: 379.26244211627386

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

Determinant of the n X n matrix whose element (i,j) equals σ(|i-j|) where σ(n) is the sum of divisors of n and σ(0) = 0. A85511

a(n) = n*(n+1)*(n+2)*(n+3)/6. A33488

Array read by antidiagonals: A(n,k) is the number of nonnegative integer matrices with k columns and any number of nonzero rows with column sums n and columns in nonincreasing lexicographic order. A331315

Sum of odd divisors of Bell(n). A280589

Number of nonnegative integer matrices with 2 distinct columns and any number of nonzero rows with column sums n and columns in decreasing lexicographic order. A331397

Sum of the divisors of the n-th Bell number. A262349