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53050191 = 3531093061
BaseRepresentation
bin1100101001011…
…1101101001111
310200211020011220
43022113231033
5102040101231
65133014423
71212630165
oct312275517
9120736156
1053050191
1127a44437
1215924413
13acb585c
14708d235
1549cd896
hex3297b4f

53050191 has 16 divisors (see below), whose sum is σ = 72753120. Its totient is φ = 34369920.

The previous prime is 53050189. The next prime is 53050199. The reversal of 53050191 is 19105035.

It is not a de Polignac number, because 53050191 - 21 = 53050189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53050199) 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, 15801 + ... + 18861.

It is an arithmetic number, because the mean of its divisors is an integer number (4547070).

Almost surely, 253050191 is an apocalyptic number.

53050191 is a deficient number, since it is larger than the sum of its proper divisors (19702929).

53050191 is a wasteful number, since it uses less digits than its factorization.

53050191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3226.

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 53050191 is about 7283.5562055908. The cubic root of 53050191 is about 375.7471114324.

It can be divided in two parts, 530 and 50191, that added together give a triangular number (50721 = T318).

The spelling of 53050191 in words is "fifty-three million, fifty thousand, one hundred ninety-one".

Divisors: 1 3 53 109 159 327 3061 5777 9183 17331 162233 333649 486699 1000947 17683397 53050191