Properties of the Number -157899

One Hundred Fifty-Seven Thousand Eight Hundred Ninety-Nine

Basics

Value: -157900 → -157899 → -157898

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 39

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 73 × 103

Divisors: 1, 3, 7, 21, 73, 103, 219, 309, 511, 721

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100110100011001011

Octal: -464313

Duodecimal: -77463

Hexadecimal: -268cb

Square: 24932094201

Square Root: 397.36507143935034

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

Squarefree integers m > 1 such that if prime p divides m, then s_p(m) >= p and s_p(m) == 3 (mod p-1), where s_p(m) is the sum of the base p digits of m. A324405

a(n) = ∑_i=0..n digsum₇(i)⁴, where digsum₇(i) = A053828(i). A231679

a(n) = T(n,[ n/2 ]), where T is the array defined in A026082. A26094