1,381,247

7 × 37 × 5333

Starting at 1,381,247, the Collatz iteration reaches 1 after 93 steps. The first transition is 4143742; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 7 × 37 × 5333

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,621,536

Proper Divisor Sum 240,289

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #1381231 ← → #1381271

Radix Representation

Decimal	1381247
Binary	101010001001101111111 (21 bits)
Octal	0o5211577
Hexadecimal	0x15137F

Divisor Catalog (8)

1 7 37 259 5,333 37,331 197,321 1,381,247

Collatz Trajectory (93 steps to reach 1)

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

1,381,247 4,143,742 2,071,871 6,215,614 3,107,807 9,323,422 4,661,711 13,985,134 6,992,567 20,977,702 10,488,851 31,466,554 15,733,277 47,199,832 23,599,916 11,799,958 5,899,979 17,699,938 8,849,969 26,549,908 13,274,954 6,637,477 19,912,432 9,956,216 4,978,108 2,489,054 1,244,527 3,733,582 1,866,791 5,600,374 2,800,187 8,400,562 4,200,281 12,600,844 6,300,422 3,150,211 9,450,634 4,725,317 14,175,952 7,087,976 3,543,988 1,771,994 885,997 2,657,992 1,328,996 664,498 332,249 996,748 498,374 249,187 747,562 373,781 1,121,344 560,672 280,336 140,168 70,084 35,042 17,521 52,564

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