13,559,890

2 × 5 × 1355989

13,559,890 factors as 2 × 5 × 1355989. Its 8 positive divisors give a proper-divisor sum of 10,847,930, so this integer is deficient. The Collatz stopping time is 161 steps.

Prime Factor Structure

Factorization String 2 × 5 × 1355989

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 24,407,820

Proper Divisor Sum 10,847,930

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #13559879 ← → #13559893

Radix Representation

Decimal	13559890
Binary	110011101110100001010010 (24 bits)
Octal	0o63564122
Hexadecimal	0xCEE852

Divisor Catalog (8)

1 2 5 10 1,355,989 2,711,978 6,779,945 13,559,890

Collatz Trajectory (161 steps to reach 1)

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

13,559,890 6,779,945 20,339,836 10,169,918 5,084,959 15,254,878 7,627,439 22,882,318 11,441,159 34,323,478 17,161,739 51,485,218 25,742,609 77,227,828 38,613,914 19,306,957 57,920,872 28,960,436 14,480,218 7,240,109 21,720,328 10,860,164 5,430,082 2,715,041 8,145,124 4,072,562 2,036,281 6,108,844 3,054,422 1,527,211 4,581,634 2,290,817 6,872,452 3,436,226 1,718,113 5,154,340 2,577,170 1,288,585 3,865,756 1,932,878 966,439 2,899,318 1,449,659 4,348,978 2,174,489 6,523,468 3,261,734 1,630,867 4,892,602 2,446,301 7,338,904 3,669,452 1,834,726 917,363 2,752,090 1,376,045 4,128,136 2,064,068 1,032,034 516,017

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