Properties of the Number -401957

Four Hundred One Thousand Nine Hundred Fifty-Seven

Basics

Value: -401958 → -401957 → -401956

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 401957

Divisors: 1, 401957

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100010001000100101

Octal: -1421045

Duodecimal: -174745

Hexadecimal: -62225

Square: 161569429849

Square Root: 634.0007886430426

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

Primes of form 4·p² + 1, p prime. A52292

Divisorial primes: primes p of the form p = 1 + ∏_d∣k d for some k. A258455

Primes of the form n²+1 such that (n+2)²+1 is also prime. A206328

Primes of the form 81n² - 90n + 26. A144571

Lower twin primes p1 such that p1-1 is a square. A145824

Divisorial primes p of the form p = 1 + k² where k² = ∏_d∣k d= A007955(k) for some k. A258896

Primes p such that all prime factors of p-1 have exponent 2. A89195

Primes of form n² + μ(n), where μ is A008683. A62459

Primes p such that σ(p-1)+σ(p+1) is prime. A67464

First of two consecutive (primes of the form n²+1) with no semiprime of the same form between them. A242109