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50525728 = 2511213049
BaseRepresentation
bin1100000010111…
…1011000100000
310112001222021021
43000233120200
5100413310403
65002535224
71152314221
oct300573040
9115058237
1050525728
112657a800
1214b07514
13a6107a6
1469d3248
1546808bd
hex302f620

50525728 has 36 divisors (see below), whose sum is σ = 109345950. Its totient is φ = 22964480.

The previous prime is 50525711. The next prime is 50525729. The reversal of 50525728 is 82752505.

It can be written as a sum of positive squares in only one way, i.e., 41835024 + 8690704 = 6468^2 + 2948^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50525693 and 50525702.

It is not an unprimeable number, because it can be changed into a prime (50525729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2653 + ... + 10396.

Almost surely, 250525728 is an apocalyptic number.

It is an amenable number.

50525728 is an abundant number, since it is smaller than the sum of its proper divisors (58820222).

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

50525728 is a wasteful number, since it uses less digits than its factorization.

50525728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13081 (or 13062 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 34.

The square root of 50525728 is about 7108.1451870372. The cubic root of 50525728 is about 369.6898496600.

The spelling of 50525728 in words is "fifty million, five hundred twenty-five thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 11 16 22 32 44 88 121 176 242 352 484 968 1936 3872 13049 26098 52196 104392 143539 208784 287078 417568 574156 1148312 1578929 2296624 3157858 4593248 6315716 12631432 25262864 50525728