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52755199 = 7171932297
BaseRepresentation
bin1100100100111…
…1101011111111
310200021020112021
43021033223333
5102001131244
65122421011
71210261150
oct311175377
9120236467
1052755199
1127862842
1215801767
13ac114c3
147013927
154971284
hex324faff

52755199 has 16 divisors (see below), whose sum is σ = 64196928. Its totient is φ = 42319872.

The previous prime is 52755167. The next prime is 52755223. The reversal of 52755199 is 99155725.

It is a happy number.

It is not a de Polignac number, because 52755199 - 25 = 52755167 is a prime.

It is a super-2 number, since 2×527551992 = 5566222043059202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52755119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21819 + ... + 24115.

It is an arithmetic number, because the mean of its divisors is an integer number (4012308).

Almost surely, 252755199 is an apocalyptic number.

52755199 is the 4594-th heptagonal number.

52755199 is a deficient number, since it is larger than the sum of its proper divisors (11441729).

52755199 is a wasteful number, since it uses less digits than its factorization.

52755199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2514.

The product of its digits is 141750, while the sum is 43.

The square root of 52755199 is about 7263.2774282689. The cubic root of 52755199 is about 375.0493540968.

The spelling of 52755199 in words is "fifty-two million, seven hundred fifty-five thousand, one hundred ninety-nine".

Divisors: 1 7 17 119 193 1351 2297 3281 16079 22967 39049 273343 443321 3103247 7536457 52755199