Properties of the Number -123239

One Hundred Twenty-Three Thousand Two Hundred Thirty-Nine

Basics

Value: -123240 → -123239 → -123238

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 123239

Divisors: 1, 123239

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -11110000101100111

Octal: -360547

Duodecimal: -5B39B

Hexadecimal: -1e167

Square: 15187851121

Square Root: 351.0541268807419

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

Numerators of the partial alternating sums of the reciprocals of the powerful part function (A057521). A379585

Primes of the form 5n² - 6. A201787

Earliest occurrences of n consecutive primes ending in the same decimal digit, written as triangle T(n,k), 1<=k<=n. A329594

Square array read by antidiagonals in ascending order T(n,k), n > 1 and k > 0, representing the least prime p that starts a run of exactly k consecutive primes, all having the same sum of digits in base n > 1, or -1 if no such number exists. A375765