2,121,005

5 × 17 × 24953

2,121,005 factors as 5 × 17 × 24953. Its 8 positive divisors give a proper-divisor sum of 574,027, so this integer is deficient. The Collatz stopping time is 73 steps.

Prime Factor Structure

Factorization String 5 × 17 × 24953

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 2,695,032

Proper Divisor Sum 574,027

Digit Sum / Digital Root 11 (Root: 2)

Adjacent Primes #2120981 ← → #2121011

Radix Representation

Decimal	2121005
Binary	1000000101110100101101 (22 bits)
Octal	0o10056455
Hexadecimal	0x205D2D

Divisor Catalog (8)

1 5 17 85 24,953 124,765 424,201 2,121,005

Collatz Trajectory (73 steps to reach 1)

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

2,121,005 6,363,016 3,181,508 1,590,754 795,377 2,386,132 1,193,066 596,533 1,789,600 894,800 447,400 223,700 111,850 55,925 167,776 83,888 41,944 20,972 10,486 5,243 15,730 7,865 23,596 11,798 5,899 17,698 8,849 26,548 13,274 6,637 19,912 9,956 4,978 2,489 7,468 3,734 1,867 5,602 2,801 8,404 4,202 2,101 6,304 3,152 1,576 788 394 197 592 296 148 74 37 112 56 28 14 7 22 11

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