λ
Matchaa Zalai

1,390,469

1390469
Deficient Odd Prime

1,390,469 factors as 1390469. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 168 steps.

Prime Factor Structure

Factorization String 1390469
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 1,390,470
Proper Divisor Sum 1
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #1390457 ← → #1390471

Radix Representation

Decimal 1390469
Binary 101010011011110000101 (21 bits)
Octal 0o5233605
Hexadecimal 0x153785

Divisor Catalog (2)

Collatz Trajectory (168 steps to reach 1)

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

1,390,469 4,171,408 2,085,704 1,042,852 521,426 260,713 782,140 391,070 195,535 586,606 293,303 879,910 439,955 1,319,866 659,933 1,979,800 989,900 494,950 247,475 742,426 371,213 1,113,640 556,820 278,410 139,205 417,616 208,808 104,404 52,202 26,101 78,304 39,152 19,576 9,788 4,894 2,447 7,342 3,671 11,014 5,507 16,522 8,261 24,784 12,392 6,196 3,098 1,549 4,648 2,324 1,162 581 1,744 872 436 218 109 328 164 82 41

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