Massive primordial black holes in contemporary universe
  The parameters of the original log-normal mass spectrum of primordial black
holes (PBH) are approximately adjusted on the basis of existing observational
data on supermassive black holes in the galactic centers and the mass
distribution of the near-solar mass black holes in the Galaxy. Together with
the assumption that PBHs make all or a noticeable mass fraction of the
cosmological dark matter, it allows to fix the parameters of the original mass
spectrum. The predicted, in this way, the number density of MACHOs is found to
be about an order of magnitude below the observed value. A possible resolution
of this controversy may be prescribed to the non-isotropic and inhomogeneous
distribution of MACHOs or to the modification of the original spectrum, e.g.
assuming a superposition of two-maximum log-normal spectra of PBHs. A competing
possibility is that MACHOs are not PBHs but dead primordial compact stars.
