Properties of the Number -161840

One Hundred Sixty-One Thousand Eight Hundred Forty

Basics

Value: -161841 → -161840 → -161839

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ⁴ × 5 × 7 × 17 ²

Divisors: 1, 2, 4, 5, 7, 8, 10, 14, 16, 17

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100111100000110000

Octal: -474060

Duodecimal: -797A8

Hexadecimal: -27830

Square: 26192185600

Square Root: 402.2934252507739

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

Spt function: total number of smallest parts (counted with multiplicity) in all partitions of n. A92269

a(n) = ∑_{k=1..n, gcd(n,k) = 1} k³. A53819

spt(5n+4) where spt(n) = A092269(n). A220485