λ
Sequence Observatory

1,954,145

5 × 390829
Deficient Odd Composite

Starting at 1,954,145, the Collatz iteration reaches 1 after 352 steps. The first transition is 5862436; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 390829
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 2,344,980
Proper Divisor Sum 390,835
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #1954111 ← → #1954151

Radix Representation

Decimal 1954145
Binary 111011101000101100001 (21 bits)
Octal 0o7350541
Hexadecimal 0x1DD161

Divisor Catalog (4)

1 5 390,829 1,954,145

Collatz Trajectory (352 steps to reach 1)

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

1,954,145 5,862,436 2,931,218 1,465,609 4,396,828 2,198,414 1,099,207 3,297,622 1,648,811 4,946,434 2,473,217 7,419,652 3,709,826 1,854,913 5,564,740 2,782,370 1,391,185 4,173,556 2,086,778 1,043,389 3,130,168 1,565,084 782,542 391,271 1,173,814 586,907 1,760,722 880,361 2,641,084 1,320,542 660,271 1,980,814 990,407 2,971,222 1,485,611 4,456,834 2,228,417 6,685,252 3,342,626 1,671,313 5,013,940 2,506,970 1,253,485 3,760,456 1,880,228 940,114 470,057 1,410,172 705,086 352,543 1,057,630 528,815 1,586,446 793,223 2,379,670 1,189,835 3,569,506 1,784,753 5,354,260 2,677,130

More profiles

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