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Modular Archive

438,145

5 × 87629
Deficient Odd Composite

The decimal integer 438,145 is 1101010111110000001 in binary (19 bits), 1527601 in octal and 6AF81 in hexadecimal. Its digit sum is 25.

Prime Factor Structure

Factorization String 5 × 87629
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 525,780
Proper Divisor Sum 87,635
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #438143 ← → #438169

Radix Representation

Decimal 438145
Binary 1101010111110000001 (19 bits)
Octal 0o1527601
Hexadecimal 0x6AF81

Divisor Catalog (4)

1 5 87,629 438,145

Collatz Trajectory (143 steps to reach 1)

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

438,145 1,314,436 657,218 328,609 985,828 492,914 246,457 739,372 369,686 184,843 554,530 277,265 831,796 415,898 207,949 623,848 311,924 155,962 77,981 233,944 116,972 58,486 29,243 87,730 43,865 131,596 65,798 32,899 98,698 49,349 148,048 74,024 37,012 18,506 9,253 27,760 13,880 6,940 3,470 1,735 5,206 2,603 7,810 3,905 11,716 5,858 2,929 8,788 4,394 2,197 6,592 3,296 1,648 824 412 206 103 310 155 466

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