λ
Sequence Observatory

3,118,491

32 × 157 × 2207
Deficient Odd Composite

Starting at 3,118,491, the Collatz iteration reaches 1 after 182 steps. The first transition is 9355474; the starting value is odd with 12 positive divisors.

Prime Factor Structure

Factorization String 3^2 × 157 × 2207
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 4,535,232
Proper Divisor Sum 1,416,741
Digit Sum / Digital Root 27 (Root: 9)
Adjacent Primes #3118481 ← → #3118499

Radix Representation

Decimal 3118491
Binary 1011111001010110011011 (22 bits)
Octal 0o13712633
Hexadecimal 0x2F959B

Divisor Catalog (12)

1 3 9 157 471 1,413 2,207 6,621 19,863 346,499 1,039,497 3,118,491

Collatz Trajectory (182 steps to reach 1)

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

3,118,491 9,355,474 4,677,737 14,033,212 7,016,606 3,508,303 10,524,910 5,262,455 15,787,366 7,893,683 23,681,050 11,840,525 35,521,576 17,760,788 8,880,394 4,440,197 13,320,592 6,660,296 3,330,148 1,665,074 832,537 2,497,612 1,248,806 624,403 1,873,210 936,605 2,809,816 1,404,908 702,454 351,227 1,053,682 526,841 1,580,524 790,262 395,131 1,185,394 592,697 1,778,092 889,046 444,523 1,333,570 666,785 2,000,356 1,000,178 500,089 1,500,268 750,134 375,067 1,125,202 562,601 1,687,804 843,902 421,951 1,265,854 632,927 1,898,782 949,391 2,848,174 1,424,087 4,272,262

More profiles

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