λ
Sigma Notebook

78,487

78487
Deficient Odd Prime

78,487 is odd and not a perfect square. Its factorization is 78487 and its 2 divisors sum to 78,488.

Prime Factor Structure

Factorization String 78487
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 78,488
Proper Divisor Sum 1
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #78479 ← → #78497

Radix Representation

Decimal 78487
Binary 10011001010010111 (17 bits)
Octal 0o231227
Hexadecimal 0x13297

Divisor Catalog (2)

1 78,487

Collatz Trajectory (169 steps to reach 1)

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

78,487 235,462 117,731 353,194 176,597 529,792 264,896 132,448 66,224 33,112 16,556 8,278 4,139 12,418 6,209 18,628 9,314 4,657 13,972 6,986 3,493 10,480 5,240 2,620 1,310 655 1,966 983 2,950 1,475 4,426 2,213 6,640 3,320 1,660 830 415 1,246 623 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777 5,332 2,666 1,333 4,000 2,000 1,000 500

More profiles

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