Properties of the Number -340561

Three Hundred Forty Thousand Five Hundred Sixty-One

Basics

Value: -340562 → -340561 → -340560

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 13 × 17 × 23 × 67

Divisors: 1, 13, 17, 23, 67, 221, 299, 391, 871, 1139

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1010011001001010001

Octal: -1231121

Duodecimal: -145101

Hexadecimal: -53251

Square: 115981794721

Square Root: 583.576044744813

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

Carmichael numbers: composite numbers k such that a^k-1 == 1 (mod k) for every a coprime to k. A2997

Pseudoprimes to bases 2, 3 and 5. A83737

Carmichael numbers with exactly 4 prime factors. A74379

Composite numbers n with the property that φ(n) divides (n-1)². A173703

Carmichael numbers with more than 3 prime factors. A141711

Carmichael numbers ending in 1. A354609

Pseudoprimes to bases 2, 3, 5 and 7. A83739

Devaraj numbers: squarefree r-prime-factor (r>1) integers N=p1*...*pr such that φ(N)=(p1-1)*...*(pr-1) divides gcd(p1-1,...,pr-1)²*(N-1)^r-2. A104016

Carmichael numbers (A002997) that are not absolute Euler pseudoprimes (A033181). A262043

Carmichael numbers k such that Euler totient function of k (φ(k)) is a perfect square. A272798