λ
Sequence Observatory

1,230,519

3 × 410173
Deficient Odd Composite

Starting at 1,230,519, the Collatz iteration reaches 1 after 85 steps. The first transition is 3691558; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 410173
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,640,696
Proper Divisor Sum 410,177
Digit Sum / Digital Root 21 (Root: 3)
Adjacent Primes #1230491 ← → #1230521

Radix Representation

Decimal 1230519
Binary 100101100011010110111 (21 bits)
Octal 0o4543267
Hexadecimal 0x12C6B7

Divisor Catalog (4)

1 3 410,173 1,230,519

Collatz Trajectory (85 steps to reach 1)

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

1,230,519 3,691,558 1,845,779 5,537,338 2,768,669 8,306,008 4,153,004 2,076,502 1,038,251 3,114,754 1,557,377 4,672,132 2,336,066 1,168,033 3,504,100 1,752,050 876,025 2,628,076 1,314,038 657,019 1,971,058 985,529 2,956,588 1,478,294 739,147 2,217,442 1,108,721 3,326,164 1,663,082 831,541 2,494,624 1,247,312 623,656 311,828 155,914 77,957 233,872 116,936 58,468 29,234 14,617 43,852 21,926 10,963 32,890 16,445 49,336 24,668 12,334 6,167 18,502 9,251 27,754 13,877 41,632 20,816 10,408 5,204 2,602 1,301

More profiles

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