λ
Sigma Notebook

981,681

3 × 337 × 971
Deficient Odd Composite

981,681 is odd and not a perfect square. Its factorization is 3 × 337 × 971 and its 8 divisors sum to 1,314,144.

Prime Factor Structure

Factorization String 3 × 337 × 971
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,314,144
Proper Divisor Sum 332,463
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #981653 ← → #981683

Radix Representation

Decimal 981681
Binary 11101111101010110001 (20 bits)
Octal 0o3575261
Hexadecimal 0xEFAB1

Divisor Catalog (8)

1 3 337 971 1,011 2,913 327,227 981,681

Collatz Trajectory (64 steps to reach 1)

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

981,681 2,945,044 1,472,522 736,261 2,208,784 1,104,392 552,196 276,098 138,049 414,148 207,074 103,537 310,612 155,306 77,653 232,960 116,480 58,240 29,120 14,560 7,280 3,640 1,820 910 455 1,366 683 2,050 1,025 3,076 1,538 769 2,308 1,154 577 1,732 866 433 1,300 650 325 976 488 244 122 61 184 92 46 23 70 35 106 53 160 80 40 20 10 5

More profiles

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