1,366,731

3² × 181 × 839

Starting at 1,366,731, the Collatz iteration reaches 1 after 186 steps. The first transition is 4100194; the starting value is odd with 12 positive divisors.

Prime Factor Structure

Factorization String 3^2 × 181 × 839

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 1,987,440

Proper Divisor Sum 620,709

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #1366721 ← → #1366747

Radix Representation

Decimal	1366731
Binary	101001101101011001011 (21 bits)
Octal	0o5155313
Hexadecimal	0x14DACB

Divisor Catalog (12)

1 3 9 181 543 839 1,629 2,517 7,551 151,859 455,577 1,366,731

Collatz Trajectory (186 steps to reach 1)

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

1,366,731 4,100,194 2,050,097 6,150,292 3,075,146 1,537,573 4,612,720 2,306,360 1,153,180 576,590 288,295 864,886 432,443 1,297,330 648,665 1,945,996 972,998 486,499 1,459,498 729,749 2,189,248 1,094,624 547,312 273,656 136,828 68,414 34,207 102,622 51,311 153,934 76,967 230,902 115,451 346,354 173,177 519,532 259,766 129,883 389,650 194,825 584,476 292,238 146,119 438,358 219,179 657,538 328,769 986,308 493,154 246,577 739,732 369,866 184,933 554,800 277,400 138,700 69,350 34,675 104,026 52,013

← Previous Integer #1,366,730 Browse Full Index Next Integer #1,366,732 →