Properties of the Number -139876

One Hundred Thirty-Nine Thousand Eight Hundred Seventy-Six

Basics

Value: -139877 → -139876 → -139875

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 11 ² × 17 ²

Divisors: 1, 2, 4, 11, 17, 22, 34, 44, 68, 121

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -100010001001100100

Octal: -421144

Duodecimal: -68B44

Hexadecimal: -22264

Square: 19565295376

Square Root: 374

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 (0,1)-matrix with (i,j)-entry equal to 1 if and only if i + j is 2 or an odd composite number. A228591

Group the triangular numbers so that the n-th group sum is a multiple of n. 1, (3, 6, 10, 15), (21), (28), (36, 45, 55, 66, 78), (91, 105, 120, 136, 153, 171, 190), ... Sequence contains the group sums. A114031

Squares appearing in A062064: a(n) = A062064(n) + A062064(n+1). A134537

Perfect squares which can be written in all the four forms a²+b², a²+2·b², a²+3·b² and a²+7·b², with a > 0 and b > 0. A216682

Squares which have one or more occurrences of exactly six different digits. A235721

Squares in whose primorial base expansion only even digits appear. A328850

a(n) = (10·n + 4)². A17318

a(n) = (11·n)². A17390

Square perimeters of primitive Pythagorean triangles. A120089

Number of (w,x,y,z) with all terms in {1,...,n} and w<=2x and y<=2z. A212506