Properties of the Number 87119

Eighty-Seven Thousand One Hundred Nineteen

Basics

Value: 87118 → 87119 → 87120

Parity: odd

Prime: Yes

Previous Prime: 87107

Next Prime: 87121

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 87119

Divisors: 1, 87119

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 10101010001001111

Octal: 252117

Duodecimal: 424BB

Hexadecimal: 1544f

Square: 7589720161

Square Root: 295.1592790342191

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

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one. A184095

Primes p such that 11 is the largest of all prime factors of the numbers between p and the next prime (cf. A052248). A80187

a(n) = 80·n² - 1. A158774

a(n) = n! * ∑_{k=0..floor(n/4)} (-k/24)^k / (k! * (n-4·k)!). A362342

Number of (n+1)X3 0..3 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one. A184088

Primes of the form 5n² - 1. A201783

Primes obtained by merging 5 successive digits in the decimal expansion of sqrt(2) + sqrt(3) + sqrt(5). A241221

Number of (n+1)X8 0..3 arrays with rows and columns in nondecreasing order and with no 2X2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one. A184093

Numbers having more than one maximal group of consecutive zeros in binary representation of n. A87119