λ
Sigma Notebook

2,490,215

5 × 7 × 132 × 421
Deficient Odd Composite

2,490,215 is odd and not a perfect square. Its factorization is 5 × 7 × 13^2 × 421 and its 24 divisors sum to 3,706,848.

Prime Factor Structure

Factorization String 5 × 7 × 13^2 × 421
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 3,706,848
Proper Divisor Sum 1,216,633
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #2490209 ← → #2490221

Radix Representation

Decimal 2490215
Binary 1001011111111101100111 (22 bits)
Octal 0o11377547
Hexadecimal 0x25FF67

Divisor Catalog (24)

1 5 7 13 35 65 91 169 421 455 845 1,183 2,105 2,947 5,473 5,915 14,735 27,365 38,311 71,149 191,555 355,745 498,043 2,490,215

Collatz Trajectory (342 steps to reach 1)

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

2,490,215 7,470,646 3,735,323 11,205,970 5,602,985 16,808,956 8,404,478 4,202,239 12,606,718 6,303,359 18,910,078 9,455,039 28,365,118 14,182,559 42,547,678 21,273,839 63,821,518 31,910,759 95,732,278 47,866,139 143,598,418 71,799,209 215,397,628 107,698,814 53,849,407 161,548,222 80,774,111 242,322,334 121,161,167 363,483,502 181,741,751 545,225,254 272,612,627 817,837,882 408,918,941 1,226,756,824 613,378,412 306,689,206 153,344,603 460,033,810 230,016,905 690,050,716 345,025,358 172,512,679 517,538,038 258,769,019 776,307,058 388,153,529 1,164,460,588 582,230,294 291,115,147 873,345,442 436,672,721 1,310,018,164 655,009,082 327,504,541 982,513,624 491,256,812 245,628,406 122,814,203

More profiles

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