λ
Ratio Atlas

1,525,639

1525639
Deficient Odd Prime

1,525,639 factors as 1525639. Its 2 positive divisors give a proper-divisor sum of 1, so this integer is deficient. The Collatz stopping time is 225 steps.

Prime Factor Structure

Factorization String 1525639
Distinct Prime Factors 1
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 2
Divisor Sum (σ) 1,525,640
Proper Divisor Sum 1
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #1525637 ← → #1525669

Radix Representation

Decimal 1525639
Binary 101110100011110000111 (21 bits)
Octal 0o5643607
Hexadecimal 0x174787

Divisor Catalog (2)

1 1,525,639

Collatz Trajectory (225 steps to reach 1)

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

1,525,639 4,576,918 2,288,459 6,865,378 3,432,689 10,298,068 5,149,034 2,574,517 7,723,552 3,861,776 1,930,888 965,444 482,722 241,361 724,084 362,042 181,021 543,064 271,532 135,766 67,883 203,650 101,825 305,476 152,738 76,369 229,108 114,554 57,277 171,832 85,916 42,958 21,479 64,438 32,219 96,658 48,329 144,988 72,494 36,247 108,742 54,371 163,114 81,557 244,672 122,336 61,168 30,584 15,292 7,646 3,823 11,470 5,735 17,206 8,603 25,810 12,905 38,716 19,358 9,679

More profiles

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