Properties of the Number -1379

Three Hundred Seventy-Nine

Basics

Value: -1380 → -1379 → -1378

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 7 × 197

Divisors: 1, 7, 197, 1379

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -10101100011

Octal: -2543

Duodecimal: -96B

Hexadecimal: -563

Square: 1901641

Square Root: 37.134889255254286

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

Triangle read by rows : T(n,0) = n+1, T(n,k)=0 if k<0 or if k>n, T(n,k) = k·T(n-1,k) - T(n-1,k-1). A159881

Triangle read by rows: A011971·A007318^-1. A136790

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 241", based on the 5-celled von Neumann neighborhood. A270991

Expansion of ∏_k>=1 (1 - (x*(1 + x))^k). A309575

Toothpick sequence (see Comments lines for definition). A139250

Central polygonal numbers (the Lazy Caterer's sequence): n(n+1)/2 + 1; or, maximal number of pieces formed when slicing a pancake with n cuts. A124

a(n) = n*(n² + 1)/2. A6003

List of codewords in binary lexicode with Hamming distance 4 written as decimal numbers. A75928

Numbers > 1000 such that all the substrings of length = 3 are primes (substrings with leading '0' are considered to be nonprime). A211684

Number of anti-transitive rooted trees with n nodes. A306844