λ
Sigma Notebook

211,873

211873
Deficient Odd Prime

211,873 is odd and not a perfect square. Its factorization is 211873 and its 2 divisors sum to 211,874.

Prime Factor Structure

Factorization String 211873
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 211,874
Proper Divisor Sum 1
Digit Sum / Digital Root 22 (Root: 4)
Adjacent Primes #211867 ← → #211877

Radix Representation

Decimal 211873
Binary 110011101110100001 (18 bits)
Octal 0o635641
Hexadecimal 0x33BA1

Divisor Catalog (2)

Collatz Trajectory (248 steps to reach 1)

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

211,873 635,620 317,810 158,905 476,716 238,358 119,179 357,538 178,769 536,308 268,154 134,077 402,232 201,116 100,558 50,279 150,838 75,419 226,258 113,129 339,388 169,694 84,847 254,542 127,271 381,814 190,907 572,722 286,361 859,084 429,542 214,771 644,314 322,157 966,472 483,236 241,618 120,809 362,428 181,214 90,607 271,822 135,911 407,734 203,867 611,602 305,801 917,404 458,702 229,351 688,054 344,027 1,032,082 516,041 1,548,124 774,062 387,031 1,161,094 580,547 1,741,642

More profiles

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