λ
Match Zalai

605,639

605639
Deficient Odd Prime

605,639 factors as 605639. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 159 steps.

Prime Factor Structure

Factorization String 605639
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 605,640
Proper Divisor Sum 1
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #605629 ← → #605641

Radix Representation

Decimal 605639
Binary 10010011110111000111 (20 bits)
Octal 0o2236707
Hexadecimal 0x93DC7

Divisor Catalog (2)

Collatz Trajectory (159 steps to reach 1)

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

605,639 1,816,918 908,459 2,725,378 1,362,689 4,088,068 2,044,034 1,022,017 3,066,052 1,533,026 766,513 2,299,540 1,149,770 574,885 1,724,656 862,328 431,164 215,582 107,791 323,374 161,687 485,062 242,531 727,594 363,797 1,091,392 545,696 272,848 136,424 68,212 34,106 17,053 51,160 25,580 12,790 6,395 19,186 9,593 28,780 14,390 7,195 21,586 10,793 32,380 16,190 8,095 24,286 12,143 36,430 18,215 54,646 27,323 81,970 40,985 122,956 61,478 30,739 92,218 46,109 138,328

More profiles

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