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54221315204 = 2273122015063
BaseRepresentation
bin110010011111110101…
…111001110010000100
312011221202222012110102
4302133311321302010
51342021124041304
640524154543232
73626440401110
oct623765716204
9164852865412
1054221315204
1120aa4578701
12a612737b18
13516149c684
1428a5214740
151625284d1e
hexc9fd79c84

54221315204 has 36 divisors (see below), whose sum is σ = 112053678912. Its totient is φ = 22488091920.

The previous prime is 54221315191. The next prime is 54221315209. The reversal of 54221315204 is 40251312245.

It is not an unprimeable number, because it can be changed into a prime (54221315209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 980624 + ... + 1034439.

It is an arithmetic number, because the mean of its divisors is an integer number (3112602192).

Almost surely, 254221315204 is an apocalyptic number.

It is an amenable number.

54221315204 is an abundant number, since it is smaller than the sum of its proper divisors (57832363708).

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

54221315204 is a wasteful number, since it uses less digits than its factorization.

54221315204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015136 (or 2015103 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 54221315204 its reverse (40251312245), we get a palindrome (94472627449).

The spelling of 54221315204 in words is "fifty-four billion, two hundred twenty-one million, three hundred fifteen thousand, two hundred four".

Divisors: 1 2 4 7 14 28 31 62 124 217 434 868 961 1922 3844 6727 13454 26908 2015063 4030126 8060252 14105441 28210882 56421764 62466953 124933906 249867812 437268671 874537342 1749074684 1936475543 3872951086 7745902172 13555328801 27110657602 54221315204