λ
Sequence Observatory

238,853

238853
Deficient Odd Prime

Starting at 238,853, the Collatz iteration reaches 1 after 75 steps. The first transition is 716560; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 238853
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 238,854
Proper Divisor Sum 1
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #238841 ← → #238859

Radix Representation

Decimal 238853
Binary 111010010100000101 (18 bits)
Octal 0o722405
Hexadecimal 0x3A505

Divisor Catalog (2)

Collatz Trajectory (75 steps to reach 1)

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

238,853 716,560 358,280 179,140 89,570 44,785 134,356 67,178 33,589 100,768 50,384 25,192 12,596 6,298 3,149 9,448 4,724 2,362 1,181 3,544 1,772 886 443 1,330 665 1,996 998 499 1,498 749 2,248 1,124 562 281 844 422 211 634 317 952 476 238 119 358 179 538 269 808 404 202 101 304 152 76 38 19 58 29 88 44

More profiles

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