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520250690279424 = 21131322928443473
BaseRepresentation
bin111011001001010100100110…
…1100101101001100000000000
32112020001110222010000211120010
41312102221031211221200000
51021142241403202420144
65042251511230344520
7214403605044263646
oct16622511545514000
92466043863024503
10520250690279424
1114084a095834215
124a42409b65b140
131943a577a51370
1492683a6a53196
154022daaea05b9
hex1d92a4d969800

520250690279424 has 192 divisors, whose sum is σ = 1500211215266400. Its totient is φ = 159378103074816.

The previous prime is 520250690279401. The next prime is 520250690279477. The reversal of 520250690279424 is 424972096052025.

It is a tau number, because it is divible by the number of its divisors (192).

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4068952 + ... + 32512424.

Almost surely, 2520250690279424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520250690279424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750105607633200).

520250690279424 is an abundant number, since it is smaller than the sum of its proper divisors (979960524986976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520250690279424 is a wasteful number, since it uses less digits than its factorization.

520250690279424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28443740 (or 28443720 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 57.

The spelling of 520250690279424 in words is "five hundred twenty trillion, two hundred fifty billion, six hundred ninety million, two hundred seventy-nine thousand, four hundred twenty-four".