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53206142 = 211127137139
BaseRepresentation
bin1100101011110…
…1110001111110
310201010011002212
43022331301332
5102110044032
65140220422
71214146643
oct312756176
9121104085
1053206142
1128040620
121599a712
13b03b832
1470cddca
154a0ebb2
hex32bdc7e

53206142 has 32 divisors (see below), whose sum is σ = 89026560. Its totient is φ = 23647680.

The previous prime is 53206133. The next prime is 53206157. The reversal of 53206142 is 24160235.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 382709 + ... + 382847.

It is an arithmetic number, because the mean of its divisors is an integer number (2782080).

Almost surely, 253206142 is an apocalyptic number.

53206142 is a deficient number, since it is larger than the sum of its proper divisors (35820418).

53206142 is a wasteful number, since it uses less digits than its factorization.

53206142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 53206142 is about 7294.2540399961. The cubic root of 53206142 is about 376.1149442978.

Adding to 53206142 its reverse (24160235), we get a palindrome (77366377).

The spelling of 53206142 in words is "fifty-three million, two hundred six thousand, one hundred forty-two".

Divisors: 1 2 11 22 127 137 139 254 274 278 1397 1507 1529 2794 3014 3058 17399 17653 19043 34798 35306 38086 191389 194183 209473 382778 388366 418946 2418461 4836922 26603071 53206142