1,290,736

2⁴ × 80671

1,290,736 factors as 2^4 × 80671. Its 10 positive divisors give a proper-divisor sum of 1,210,096, so this integer is deficient. The Collatz stopping time is 186 steps.

Prime Factor Structure

Factorization String 2^4 × 80671

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 10

Divisor Sum (σ) 2,500,832

Proper Divisor Sum 1,210,096

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #1290719 ← → #1290791

Radix Representation

Decimal	1290736
Binary	100111011000111110000 (21 bits)
Octal	0o4730760
Hexadecimal	0x13B1F0

Divisor Catalog (10)

1 2 4 8 16 80,671 161,342 322,684 645,368 1,290,736

Collatz Trajectory (186 steps to reach 1)

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

1,290,736 645,368 322,684 161,342 80,671 242,014 121,007 363,022 181,511 544,534 272,267 816,802 408,401 1,225,204 612,602 306,301 918,904 459,452 229,726 114,863 344,590 172,295 516,886 258,443 775,330 387,665 1,162,996 581,498 290,749 872,248 436,124 218,062 109,031 327,094 163,547 490,642 245,321 735,964 367,982 183,991 551,974 275,987 827,962 413,981 1,241,944 620,972 310,486 155,243 465,730 232,865 698,596 349,298 174,649 523,948 261,974 130,987 392,962 196,481 589,444 294,722

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