λ
Sequence Observatory

1,670,242

2 × 7 × 53 × 2251
Deficient Even Composite

Starting at 1,670,242, the Collatz iteration reaches 1 after 158 steps. The first transition is 835121; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 7 × 53 × 2251
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 2,918,592
Proper Divisor Sum 1,248,350
Digit Sum / Digital Root 22 (Root: 4)
Adjacent Primes #1670213 ← → #1670269

Radix Representation

Decimal 1670242
Binary 110010111110001100010 (21 bits)
Octal 0o6276142
Hexadecimal 0x197C62

Divisor Catalog (16)

1 2 7 14 53 106 371 742 2,251 4,502 15,757 31,514 119,303 238,606 835,121 1,670,242

Collatz Trajectory (158 steps to reach 1)

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

1,670,242 835,121 2,505,364 1,252,682 626,341 1,879,024 939,512 469,756 234,878 117,439 352,318 176,159 528,478 264,239 792,718 396,359 1,189,078 594,539 1,783,618 891,809 2,675,428 1,337,714 668,857 2,006,572 1,003,286 501,643 1,504,930 752,465 2,257,396 1,128,698 564,349 1,693,048 846,524 423,262 211,631 634,894 317,447 952,342 476,171 1,428,514 714,257 2,142,772 1,071,386 535,693 1,607,080 803,540 401,770 200,885 602,656 301,328 150,664 75,332 37,666 18,833 56,500 28,250 14,125 42,376 21,188 10,594

More profiles

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