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115542423 = 3397157281
BaseRepresentation
bin1101110001100…
…00100110010111
322001102011102000
412320300212113
5214034324143
615244250343
72602044243
oct670604627
9261364360
10115542423
115a247807
12328409b3
131ac25cc9
14114b9423
15a224bd3
hex6e30997

115542423 has 32 divisors (see below), whose sum is σ = 174659520. Its totient is φ = 75479040.

The previous prime is 115542377. The next prime is 115542431. The reversal of 115542423 is 324245511.

115542423 is a `hidden beast` number, since 115 + 542 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 115542423 - 214 = 115526039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115542433) 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, 411043 + ... + 411323.

It is an arithmetic number, because the mean of its divisors is an integer number (5458110).

Almost surely, 2115542423 is an apocalyptic number.

115542423 is a deficient number, since it is larger than the sum of its proper divisors (59117097).

115542423 is a wasteful number, since it uses less digits than its factorization.

115542423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 538 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 115542423 is about 10749.0661454845. The cubic root of 115542423 is about 487.0577859687.

Adding to 115542423 its reverse (324245511), we get a palindrome (439787934).

The spelling of 115542423 in words is "one hundred fifteen million, five hundred forty-two thousand, four hundred twenty-three".

Divisors: 1 3 9 27 97 157 281 291 471 843 873 1413 2529 2619 4239 7587 15229 27257 44117 45687 81771 132351 137061 245313 397053 411183 735939 1191159 4279349 12838047 38514141 115542423