λ
Sequence Observatory

9,120,641

9120641
Deficient Odd Prime

Starting at 9,120,641, the Collatz iteration reaches 1 after 194 steps. The first transition is 27361924; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 9120641
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 9,120,642
Proper Divisor Sum 1
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #9120623 ← → #9120647

Radix Representation

Decimal 9120641
Binary 100010110010101110000001 (24 bits)
Octal 0o42625601
Hexadecimal 0x8B2B81

Divisor Catalog (2)

Collatz Trajectory (194 steps to reach 1)

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

9,120,641 27,361,924 13,680,962 6,840,481 20,521,444 10,260,722 5,130,361 15,391,084 7,695,542 3,847,771 11,543,314 5,771,657 17,314,972 8,657,486 4,328,743 12,986,230 6,493,115 19,479,346 9,739,673 29,219,020 14,609,510 7,304,755 21,914,266 10,957,133 32,871,400 16,435,700 8,217,850 4,108,925 12,326,776 6,163,388 3,081,694 1,540,847 4,622,542 2,311,271 6,933,814 3,466,907 10,400,722 5,200,361 15,601,084 7,800,542 3,900,271 11,700,814 5,850,407 17,551,222 8,775,611 26,326,834 13,163,417 39,490,252 19,745,126 9,872,563 29,617,690 14,808,845 44,426,536 22,213,268 11,106,634 5,553,317 16,659,952 8,329,976 4,164,988 2,082,494

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