λ
Sequence Observatory

636,043

636043
Deficient Odd Prime

Starting at 636,043, the Collatz iteration reaches 1 after 247 steps. The first transition is 1908130; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 636043
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 636,044
Proper Divisor Sum 1
Digit Sum / Digital Root 22 (Root: 4)
Adjacent Primes #636023 ← → #636059

Radix Representation

Decimal 636043
Binary 10011011010010001011 (20 bits)
Octal 0o2332213
Hexadecimal 0x9B48B

Divisor Catalog (2)

Collatz Trajectory (247 steps to reach 1)

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

636,043 1,908,130 954,065 2,862,196 1,431,098 715,549 2,146,648 1,073,324 536,662 268,331 804,994 402,497 1,207,492 603,746 301,873 905,620 452,810 226,405 679,216 339,608 169,804 84,902 42,451 127,354 63,677 191,032 95,516 47,758 23,879 71,638 35,819 107,458 53,729 161,188 80,594 40,297 120,892 60,446 30,223 90,670 45,335 136,006 68,003 204,010 102,005 306,016 153,008 76,504 38,252 19,126 9,563 28,690 14,345 43,036 21,518 10,759 32,278 16,139 48,418 24,209

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