λ
Sigma Notebook

1,947,001

7 × 278143
Deficient Odd Composite

1,947,001 is odd and not a perfect square. Its factorization is 7 × 278143 and its 4 divisors sum to 2,225,152.

Prime Factor Structure

Factorization String 7 × 278143
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 2,225,152
Proper Divisor Sum 278,151
Digit Sum / Digital Root 22 (Root: 4)
Adjacent Primes #1946999 ← → #1947041

Radix Representation

Decimal 1947001
Binary 111011011010101111001 (21 bits)
Octal 0o7332571
Hexadecimal 0x1DB579

Divisor Catalog (4)

1 7 278,143 1,947,001

Collatz Trajectory (184 steps to reach 1)

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

1,947,001 5,841,004 2,920,502 1,460,251 4,380,754 2,190,377 6,571,132 3,285,566 1,642,783 4,928,350 2,464,175 7,392,526 3,696,263 11,088,790 5,544,395 16,633,186 8,316,593 24,949,780 12,474,890 6,237,445 18,712,336 9,356,168 4,678,084 2,339,042 1,169,521 3,508,564 1,754,282 877,141 2,631,424 1,315,712 657,856 328,928 164,464 82,232 41,116 20,558 10,279 30,838 15,419 46,258 23,129 69,388 34,694 17,347 52,042 26,021 78,064 39,032 19,516 9,758 4,879 14,638 7,319 21,958 10,979 32,938 16,469 49,408 24,704 12,352

More profiles

← Previous Integer #1,947,000 Browse Full Index Next Integer #1,947,002 →