1,635,884

2² × 408971

1,635,884 factors as 2^2 × 408971. Its 6 positive divisors give a proper-divisor sum of 1,226,920, so this integer is deficient. The Collatz stopping time is 145 steps.

Prime Factor Structure

Factorization String 2^2 × 408971

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 2,862,804

Proper Divisor Sum 1,226,920

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #1635863 ← → #1635889

Radix Representation

Decimal	1635884
Binary	110001111011000101100 (21 bits)
Octal	0o6173054
Hexadecimal	0x18F62C

Divisor Catalog (6)

1 2 4 408,971 817,942 1,635,884

Collatz Trajectory (145 steps to reach 1)

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

1,635,884 817,942 408,971 1,226,914 613,457 1,840,372 920,186 460,093 1,380,280 690,140 345,070 172,535 517,606 258,803 776,410 388,205 1,164,616 582,308 291,154 145,577 436,732 218,366 109,183 327,550 163,775 491,326 245,663 736,990 368,495 1,105,486 552,743 1,658,230 829,115 2,487,346 1,243,673 3,731,020 1,865,510 932,755 2,798,266 1,399,133 4,197,400 2,098,700 1,049,350 524,675 1,574,026 787,013 2,361,040 1,180,520 590,260 295,130 147,565 442,696 221,348 110,674 55,337 166,012 83,006 41,503 124,510 62,255

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