λ
Sequence Observatory

1,357,449

3 × 71 × 6373
Deficient Odd Composite

Starting at 1,357,449, the Collatz iteration reaches 1 after 137 steps. The first transition is 4072348; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 71 × 6373
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,835,712
Proper Divisor Sum 478,263
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #1357429 ← → #1357453

Radix Representation

Decimal 1357449
Binary 101001011011010001001 (21 bits)
Octal 0o5133211
Hexadecimal 0x14B689

Divisor Catalog (8)

1 3 71 213 6,373 19,119 452,483 1,357,449

Collatz Trajectory (137 steps to reach 1)

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

1,357,449 4,072,348 2,036,174 1,018,087 3,054,262 1,527,131 4,581,394 2,290,697 6,872,092 3,436,046 1,718,023 5,154,070 2,577,035 7,731,106 3,865,553 11,596,660 5,798,330 2,899,165 8,697,496 4,348,748 2,174,374 1,087,187 3,261,562 1,630,781 4,892,344 2,446,172 1,223,086 611,543 1,834,630 917,315 2,751,946 1,375,973 4,127,920 2,063,960 1,031,980 515,990 257,995 773,986 386,993 1,160,980 580,490 290,245 870,736 435,368 217,684 108,842 54,421 163,264 81,632 40,816 20,408 10,204 5,102 2,551 7,654 3,827 11,482 5,741 17,224 8,612

More profiles

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