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115442208 = 25327173331
BaseRepresentation
bin1101110000110…
…00001000100000
322001020001221100
412320120020200
5214023122313
615242154400
72601146130
oct670301040
9261201840
10115442208
115a189492
12327b2a00
131abbc4cb
1411490ac0
15a205173
hex6e18220

115442208 has 144 divisors (see below), whose sum is σ = 378495936. Its totient is φ = 32693760.

The previous prime is 115442191. The next prime is 115442219. The reversal of 115442208 is 802244511.

115442208 is a `hidden beast` number, since 1 + 15 + 442 + 208 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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, 348603 + ... + 348933.

It is an arithmetic number, because the mean of its divisors is an integer number (2628444).

Almost surely, 2115442208 is an apocalyptic number.

115442208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115442208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189247968).

115442208 is an abundant number, since it is smaller than the sum of its proper divisors (263053728).

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

115442208 is a wasteful number, since it uses less digits than its factorization.

115442208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 115442208 is about 10744.4035665085. The cubic root of 115442208 is about 486.9169297262.

Adding to 115442208 its reverse (802244511), we get a palindrome (917686719).

The spelling of 115442208 in words is "one hundred fifteen million, four hundred forty-two thousand, two hundred eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 32 36 42 48 56 63 72 84 96 112 126 144 168 173 224 252 288 331 336 346 504 519 662 672 692 993 1008 1038 1211 1324 1384 1557 1986 2016 2076 2317 2422 2648 2768 2979 3114 3633 3972 4152 4634 4844 5296 5536 5958 6228 6951 7266 7944 8304 9268 9688 10592 10899 11916 12456 13902 14532 15888 16608 18536 19376 20853 21798 23832 24912 27804 29064 31776 37072 38752 41706 43596 47664 49824 55608 57263 58128 74144 83412 87192 95328 111216 114526 116256 166824 171789 174384 222432 229052 333648 343578 348768 400841 458104 515367 667296 687156 801682 916208 1030734 1202523 1374312 1603364 1832416 2061468 2405046 2748624 3206728 3607569 4122936 4810092 5497248 6413456 7215138 8245872 9620184 12826912 14430276 16491744 19240368 28860552 38480736 57721104 115442208