λ
Sequence Observatory

3,473,918

2 × 7 × 248137
Deficient Even Composite

Starting at 3,473,918, the Collatz iteration reaches 1 after 221 steps. The first transition is 1736959; the starting value is even with 8 positive divisors.

Prime Factor Structure

Factorization String 2 × 7 × 248137
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 5,955,312
Proper Divisor Sum 2,481,394
Digit Sum / Digital Root 35 (Root: 8)
Adjacent Primes #3473917 ← → #3473923

Radix Representation

Decimal 3473918
Binary 1101010000000111111110 (22 bits)
Octal 0o15200776
Hexadecimal 0x3501FE

Divisor Catalog (8)

1 2 7 14 248,137 496,274 1,736,959 3,473,918

Collatz Trajectory (221 steps to reach 1)

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

3,473,918 1,736,959 5,210,878 2,605,439 7,816,318 3,908,159 11,724,478 5,862,239 17,586,718 8,793,359 26,380,078 13,190,039 39,570,118 19,785,059 59,355,178 29,677,589 89,032,768 44,516,384 22,258,192 11,129,096 5,564,548 2,782,274 1,391,137 4,173,412 2,086,706 1,043,353 3,130,060 1,565,030 782,515 2,347,546 1,173,773 3,521,320 1,760,660 880,330 440,165 1,320,496 660,248 330,124 165,062 82,531 247,594 123,797 371,392 185,696 92,848 46,424 23,212 11,606 5,803 17,410 8,705 26,116 13,058 6,529 19,588 9,794 4,897 14,692 7,346 3,673

More profiles

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