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20200928290900 = 2252759489126593
BaseRepresentation
bin1001001011111011001010…
…01001111010100001010100
32122112012010102111020212121
410211331211021322201110
510121433000120302100
6110544102304425324
74153316556224230
oct445754511724124
978465112436777
1020200928290900
1164891904239a5
1223230aa018244
13b36c29a23666
144dba317415c0
15250714a7451a
hex125f6527a854

20200928290900 has 72 divisors (see below), whose sum is σ = 50947426031040. Its totient is φ = 6808642160640.

The previous prime is 20200928290853. The next prime is 20200928290919. The reversal of 20200928290900 is 909282900202.

It is a super-3 number, since 3×202009282909003 (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 244521997 + ... + 244604596.

It is an arithmetic number, because the mean of its divisors is an integer number (707603139320).

Almost surely, 220200928290900 is an apocalyptic number.

20200928290900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200928290900 is an abundant number, since it is smaller than the sum of its proper divisors (30746497740140).

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

20200928290900 is a wasteful number, since it uses less digits than its factorization.

20200928290900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489126673 (or 489126666 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 20200928290900 in words is "twenty trillion, two hundred billion, nine hundred twenty-eight million, two hundred ninety thousand, nine hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 59 70 100 118 140 175 236 295 350 413 590 700 826 1180 1475 1652 2065 2950 4130 5900 8260 10325 20650 41300 489126593 978253186 1956506372 2445632965 3423886151 4891265930 6847772302 9782531860 12228164825 13695544604 17119430755 24456329650 28858468987 34238861510 48912659300 57716937974 68477723020 85597153775 115433875948 144292344935 171194307550 202009282909 288584689870 342388615100 404018565818 577169379740 721461724675 808037131636 1010046414545 1442923449350 2020092829090 2885846898700 4040185658180 5050232072725 10100464145450 20200928290900