λ
Modular Archive

1,580,501

13 × 121577
Deficient Odd Composite

The decimal integer 1,580,501 is 110000001110111010101 in binary (21 bits), 6016725 in octal and 181DD5 in hexadecimal. Its digit sum is 20.

Prime Factor Structure

Factorization String 13 × 121577
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,702,092
Proper Divisor Sum 121,591
Digit Sum / Digital Root 20 (Root: 2)
Adjacent Primes #1580489 ← → #1580503

Radix Representation

Decimal 1580501
Binary 110000001110111010101 (21 bits)
Octal 0o6016725
Hexadecimal 0x181DD5

Divisor Catalog (4)

1 13 121,577 1,580,501

Collatz Trajectory (57 steps to reach 1)

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

1,580,501 4,741,504 2,370,752 1,185,376 592,688 296,344 148,172 74,086 37,043 111,130 55,565 166,696 83,348 41,674 20,837 62,512 31,256 15,628 7,814 3,907 11,722 5,861 17,584 8,792 4,396 2,198 1,099 3,298 1,649 4,948 2,474 1,237 3,712 1,856 928 464 232 116 58 29 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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