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128052568 = 23717314339
BaseRepresentation
bin1111010000111…
…10110101011000
322220221202002201
413220132311120
5230240140233
620412335544
73113300050
oct750366530
9286852081
10128052568
1166311876
1236a745b4
13206b6267
1413014560
15b39677d
hex7a1ed58

128052568 has 64 divisors (see below), whose sum is σ = 299980800. Its totient is φ = 49973760.

The previous prime is 128052527. The next prime is 128052593. The reversal of 128052568 is 865250821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27343 + ... + 31681.

It is an arithmetic number, because the mean of its divisors is an integer number (4687200).

Almost surely, 2128052568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128052568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149990400).

128052568 is an abundant number, since it is smaller than the sum of its proper divisors (171928232).

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

128052568 is a wasteful number, since it uses less digits than its factorization.

128052568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400 (or 4396 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 128052568 is about 11316.0314598361. The cubic root of 128052568 is about 504.0374016923.

The spelling of 128052568 in words is "one hundred twenty-eight million, fifty-two thousand, five hundred sixty-eight".

Divisors: 1 2 4 7 8 14 17 28 31 34 56 62 68 119 124 136 217 238 248 434 476 527 868 952 1054 1736 2108 3689 4216 4339 7378 8678 14756 17356 29512 30373 34712 60746 73763 121492 134509 147526 242984 269018 295052 516341 538036 590104 941563 1032682 1076072 1883126 2065364 2286653 3766252 4130728 4573306 7532504 9146612 16006571 18293224 32013142 64026284 128052568