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128053198 = 27131921949
BaseRepresentation
bin1111010000111…
…10111111001110
322220221202222001
413220132333032
5230240200243
620412342514
73113301640
oct750367716
9286852861
10128053198
1166312299
1236a74a3a
13206b6630
1413014890
15b396a4d
hex7a1efce

128053198 has 48 divisors (see below), whose sum is σ = 249631200. Its totient is φ = 47967552.

The previous prime is 128053171. The next prime is 128053201. The reversal of 128053198 is 891350821.

It is a congruent number.

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, 64728 + ... + 66676.

It is an arithmetic number, because the mean of its divisors is an integer number (5200650).

Almost surely, 2128053198 is an apocalyptic number.

128053198 is a deficient number, since it is larger than the sum of its proper divisors (121578002).

128053198 is a wasteful number, since it uses less digits than its factorization.

128053198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 128053198 is about 11316.0592964159. The cubic root of 128053198 is about 504.0382282879.

The spelling of 128053198 in words is "one hundred twenty-eight million, fifty-three thousand, one hundred ninety-eight".

Divisors: 1 2 7 13 14 19 26 38 91 133 182 247 266 361 494 722 1729 1949 2527 3458 3898 4693 5054 9386 13643 25337 27286 32851 37031 50674 65702 74062 177359 259217 354718 481403 518434 703589 962806 1407178 3369821 4925123 6739642 9146657 9850246 18293314 64026599 128053198