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57139280135 = 573152662931
BaseRepresentation
bin110101001101110001…
…000011100100000111
312110111010122011211122
4311031301003210013
51414010123431020
642125513024155
74061651603360
oct651561034407
9173433564748
1057139280135
11222616a7973
12b0a79b505b
135507b90442
142aa0984b67
151746522125
hexd4dc43907

57139280135 has 16 divisors (see below), whose sum is σ = 80890263552. Its totient is φ = 37917309600.

The previous prime is 57139280131. The next prime is 57139280137. The reversal of 57139280135 is 53108293175.

It is not a de Polignac number, because 57139280135 - 22 = 57139280131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57139280131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26330381 + ... + 26332550.

It is an arithmetic number, because the mean of its divisors is an integer number (5055641472).

Almost surely, 257139280135 is an apocalyptic number.

57139280135 is a deficient number, since it is larger than the sum of its proper divisors (23750983417).

57139280135 is a wasteful number, since it uses less digits than its factorization.

57139280135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52662974.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 57139280135 in words is "fifty-seven billion, one hundred thirty-nine million, two hundred eighty thousand, one hundred thirty-five".

Divisors: 1 5 7 31 35 155 217 1085 52662931 263314655 368640517 1632550861 1843202585 8162754305 11427856027 57139280135