λ
Sigma Notebook

212,543

23 × 9241
Deficient Odd Composite

212,543 is odd and not a perfect square. Its factorization is 23 × 9241 and its 4 divisors sum to 221,808.

Prime Factor Structure

Factorization String 23 × 9241
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 221,808
Proper Divisor Sum 9,265
Digit Sum / Digital Root 17 (Root: 8)
Adjacent Primes #212507 ← → #212557

Radix Representation

Decimal 212543
Binary 110011111000111111 (18 bits)
Octal 0o637077
Hexadecimal 0x33E3F

Divisor Catalog (4)

1 23 9,241 212,543

Collatz Trajectory (80 steps to reach 1)

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

212,543 637,630 318,815 956,446 478,223 1,434,670 717,335 2,152,006 1,076,003 3,228,010 1,614,005 4,842,016 2,421,008 1,210,504 605,252 302,626 151,313 453,940 226,970 113,485 340,456 170,228 85,114 42,557 127,672 63,836 31,918 15,959 47,878 23,939 71,818 35,909 107,728 53,864 26,932 13,466 6,733 20,200 10,100 5,050 2,525 7,576 3,788 1,894 947 2,842 1,421 4,264 2,132 1,066 533 1,600 800 400 200 100 50 25 76 38

More profiles

← Previous Integer #212,542 Browse Full Index Next Integer #212,544 →