λ
Sequence Observatory

2,439,839

2439839
Deficient Odd Prime

Starting at 2,439,839, the Collatz iteration reaches 1 after 236 steps. The first transition is 7319518; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 2439839
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 2,439,840
Proper Divisor Sum 1
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #2439803 ← → #2439881

Radix Representation

Decimal 2439839
Binary 1001010011101010011111 (22 bits)
Octal 0o11235237
Hexadecimal 0x253A9F

Divisor Catalog (2)

Collatz Trajectory (236 steps to reach 1)

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

2,439,839 7,319,518 3,659,759 10,979,278 5,489,639 16,468,918 8,234,459 24,703,378 12,351,689 37,055,068 18,527,534 9,263,767 27,791,302 13,895,651 41,686,954 20,843,477 62,530,432 31,265,216 15,632,608 7,816,304 3,908,152 1,954,076 977,038 488,519 1,465,558 732,779 2,198,338 1,099,169 3,297,508 1,648,754 824,377 2,473,132 1,236,566 618,283 1,854,850 927,425 2,782,276 1,391,138 695,569 2,086,708 1,043,354 521,677 1,565,032 782,516 391,258 195,629 586,888 293,444 146,722 73,361 220,084 110,042 55,021 165,064 82,532 41,266 20,633 61,900 30,950 15,475

More profiles

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