λ
Sequence Observatory

1,368,730

2 × 5 × 11 × 23 × 541
Abundant Even Composite

Starting at 1,368,730, the Collatz iteration reaches 1 after 155 steps. The first transition is 684365; the starting value is even with 32 positive divisors.

Prime Factor Structure

Factorization String 2 × 5 × 11 × 23 × 541
Distinct Prime Factors 5
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 32
Divisor Sum (σ) 2,809,728
Proper Divisor Sum 1,440,998
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #1368727 ← → #1368737

Radix Representation

Decimal 1368730
Binary 101001110001010011010 (21 bits)
Octal 0o5161232
Hexadecimal 0x14E29A

Divisor Catalog (32)

1 2 5 10 11 22 23 46 55 110 115 230 253 506 541 1,082 1,265 2,530 2,705 5,410 5,951 11,902 12,443 24,886 29,755 59,510 62,215 124,430 136,873 273,746 684,365 1,368,730

Collatz Trajectory (155 steps to reach 1)

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

1,368,730 684,365 2,053,096 1,026,548 513,274 256,637 769,912 384,956 192,478 96,239 288,718 144,359 433,078 216,539 649,618 324,809 974,428 487,214 243,607 730,822 365,411 1,096,234 548,117 1,644,352 822,176 411,088 205,544 102,772 51,386 25,693 77,080 38,540 19,270 9,635 28,906 14,453 43,360 21,680 10,840 5,420 2,710 1,355 4,066 2,033 6,100 3,050 1,525 4,576 2,288 1,144 572 286 143 430 215 646 323 970 485 1,456

More profiles

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