1,210,737

3 × 11 × 19 × 1931

Starting at 1,210,737, the Collatz iteration reaches 1 after 67 steps. The first transition is 3632212; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 3 × 11 × 19 × 1931

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,854,720

Proper Divisor Sum 643,983

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #1210717 ← → #1210747

Radix Representation

Decimal	1210737
Binary	100100111100101110001 (21 bits)
Octal	0o4474561
Hexadecimal	0x127971

Divisor Catalog (16)

1 3 11 19 33 57 209 627 1,931 5,793 21,241 36,689 63,723 110,067 403,579 1,210,737

Collatz Trajectory (67 steps to reach 1)

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

1,210,737 3,632,212 1,816,106 908,053 2,724,160 1,362,080 681,040 340,520 170,260 85,130 42,565 127,696 63,848 31,924 15,962 7,981 23,944 11,972 5,986 2,993 8,980 4,490 2,245 6,736 3,368 1,684 842 421 1,264 632 316 158 79 238 119 358 179 538 269 808 404 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26 13 40

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