λ
Sigma Notebook

1,390,845

3 × 5 × 92723
Deficient Odd Composite

1,390,845 is odd and not a perfect square. Its factorization is 3 × 5 × 92723 and its 8 divisors sum to 2,225,376.

Prime Factor Structure

Factorization String 3 × 5 × 92723
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 2,225,376
Proper Divisor Sum 834,531
Digit Sum / Digital Root 30 (Root: 3)
Adjacent Primes #1390841 ← → #1390847

Radix Representation

Decimal 1390845
Binary 101010011100011111101 (21 bits)
Octal 0o5234375
Hexadecimal 0x1538FD

Divisor Catalog (8)

1 3 5 15 92,723 278,169 463,615 1,390,845

Collatz Trajectory (111 steps to reach 1)

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

1,390,845 4,172,536 2,086,268 1,043,134 521,567 1,564,702 782,351 2,347,054 1,173,527 3,520,582 1,760,291 5,280,874 2,640,437 7,921,312 3,960,656 1,980,328 990,164 495,082 247,541 742,624 371,312 185,656 92,828 46,414 23,207 69,622 34,811 104,434 52,217 156,652 78,326 39,163 117,490 58,745 176,236 88,118 44,059 132,178 66,089 198,268 99,134 49,567 148,702 74,351 223,054 111,527 334,582 167,291 501,874 250,937 752,812 376,406 188,203 564,610 282,305 846,916 423,458 211,729 635,188 317,594

More profiles

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