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205407010363137 = 31143348132986741
BaseRepresentation
bin101110101101000100001011…
…111000110001011100000001
3222221021201101201112220022120
4232231010023320301130001
5203410342024123110022
62004510402230354453
761160111126141322
oct5655041370613401
9887251351486276
10205407010363137
115a4a3695444850
121b0553081bba29
138a7ca4b18533b
1438a1a76626449
1518b319386dd5c
hexbad10be31701

205407010363137 has 32 divisors (see below), whose sum is σ = 299526162182016. Its totient is φ = 124175746483200.

The previous prime is 205407010363039. The next prime is 205407010363229. The reversal of 205407010363137 is 731363010704502.

It is a happy number.

It is not a de Polignac number, because 205407010363137 - 226 = 205406943254273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205407010363937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67279587 + ... + 70266327.

It is an arithmetic number, because the mean of its divisors is an integer number (9360192568188).

Almost surely, 2205407010363137 is an apocalyptic number.

It is an amenable number.

205407010363137 is a deficient number, since it is larger than the sum of its proper divisors (94119151818879).

205407010363137 is a wasteful number, since it uses less digits than its factorization.

205407010363137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992001.

The product of its (nonzero) digits is 317520, while the sum is 42.

The spelling of 205407010363137 in words is "two hundred five trillion, four hundred seven billion, ten million, three hundred sixty-three thousand, one hundred thirty-seven".

Divisors: 1 3 11 33 433 1299 4763 4813 14289 14439 52943 158829 2084029 2986741 6252087 8960223 22924319 32854151 68772957 98562453 1293258853 3879776559 14225847383 14375184433 42677542149 43125553299 158127028763 474381086289 6224454859489 18673364578467 68469003454379 205407010363137