λ
Sequence Observatory

1,938,861

32 × 367 × 587
Deficient Odd Composite

Starting at 1,938,861, the Collatz iteration reaches 1 after 171 steps. The first transition is 5816584; the starting value is odd with 12 positive divisors.

Prime Factor Structure

Factorization String 3^2 × 367 × 587
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 2,812,992
Proper Divisor Sum 874,131
Digit Sum / Digital Root 36 (Root: 9)
Adjacent Primes #1938851 ← → #1938863

Radix Representation

Decimal 1938861
Binary 111011001010110101101 (21 bits)
Octal 0o7312655
Hexadecimal 0x1D95AD

Divisor Catalog (12)

1 3 9 367 587 1,101 1,761 3,303 5,283 215,429 646,287 1,938,861

Collatz Trajectory (171 steps to reach 1)

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

1,938,861 5,816,584 2,908,292 1,454,146 727,073 2,181,220 1,090,610 545,305 1,635,916 817,958 408,979 1,226,938 613,469 1,840,408 920,204 460,102 230,051 690,154 345,077 1,035,232 517,616 258,808 129,404 64,702 32,351 97,054 48,527 145,582 72,791 218,374 109,187 327,562 163,781 491,344 245,672 122,836 61,418 30,709 92,128 46,064 23,032 11,516 5,758 2,879 8,638 4,319 12,958 6,479 19,438 9,719 29,158 14,579 43,738 21,869 65,608 32,804 16,402 8,201 24,604 12,302

More profiles

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