Divisor Count

number-theory · 37 views
number-theoryarithmetic

What It Is

Divisor count d(n) --- erratic arithmetic function averaging ~ln(n), spikes at highly composite numbers, modulated by prime factorization structure

Interpretation

Standard analysis sees: heavy-tailed; right-skewed; anti-correlated (alternating); anti-persistent; blue spectrum (high-frequency power). The atlas finds no named structure, but the source is distinctively extreme on Septagonal (Danzer):z_primary (-2.6z) — beyond what the standard bank predicts for it.

What standard analysis sees
tail heaviness0.93
asymmetry0.96
occupancy0.18
short-range corr0.12
long-range memory0.09
spectral colour0.89
periodicity0.71
complexity0.73
time-irreversibility0.41
volatility clustering0.31
multifractality0.45
dimensionality0.50
nonstationarity0.21
What the atlas adds
Atlas-extreme metrics the standard bank can’t predict for this source
Septagonal (Danzer):z_primary-2.6zbank-miss 1.2σ
Septagonal (Danzer):cubic_coherence-2.1zbank-miss 1.6σ

Composition

dtypefloat64
range[2, 180]
unique values51 / 16384
mean ± std14.1 ± 15.2

Render Gallery

Atlas Position

Nearest neighborDistance
Prime Gaps3.78
Aliquot Orbit Lengths3.87
Collatz Flights4.04

Open in Atlas →

Which Geometries Light Up

2-adic2-adic:valuation_transition_predictabilityrank 304/3070.3507
Zipf–Mandelbrot (16-bit)Zipf–Mandelbrot (16-bit):zipf_r_squaredrank 4/3070.9877
in stochastic-process
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