λ
Sequence Observatory

3,748,209

3 × 1249403
Deficient Odd Composite

Starting at 3,748,209, the Collatz iteration reaches 1 after 159 steps. The first transition is 11244628; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 1249403
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 4,997,616
Proper Divisor Sum 1,249,407
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #3748207 ← → #3748219

Radix Representation

Decimal 3748209
Binary 1110010011000101110001 (22 bits)
Octal 0o16230561
Hexadecimal 0x393171

Divisor Catalog (4)

1 3 1,249,403 3,748,209

Collatz Trajectory (159 steps to reach 1)

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

3,748,209 11,244,628 5,622,314 2,811,157 8,433,472 4,216,736 2,108,368 1,054,184 527,092 263,546 131,773 395,320 197,660 98,830 49,415 148,246 74,123 222,370 111,185 333,556 166,778 83,389 250,168 125,084 62,542 31,271 93,814 46,907 140,722 70,361 211,084 105,542 52,771 158,314 79,157 237,472 118,736 59,368 29,684 14,842 7,421 22,264 11,132 5,566 2,783 8,350 4,175 12,526 6,263 18,790 9,395 28,186 14,093 42,280 21,140 10,570 5,285 15,856 7,928 3,964

More profiles

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