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53208028 = 22173143587
BaseRepresentation
bin1100101011111…
…0001111011100
310201010020200201
43022332033130
5102110124103
65140233244
71214155306
oct312761734
9121106621
1053208028
1128041a85
121599b824
13b03c653
1470d0976
154a1051d
hex32be3dc

53208028 has 48 divisors (see below), whose sum is σ = 104315904. Its totient is φ = 23627520.

The previous prime is 53208019. The next prime is 53208061. The reversal of 53208028 is 82080235.

It is a junction number, because it is equal to n+sod(n) for n = 53207987 and 53208005.

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, 90351 + ... + 90937.

It is an arithmetic number, because the mean of its divisors is an integer number (2173248).

Almost surely, 253208028 is an apocalyptic number.

It is an amenable number.

53208028 is a deficient number, since it is larger than the sum of its proper divisors (51107876).

53208028 is a wasteful number, since it uses less digits than its factorization.

53208028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 53208028 is about 7294.3833186912. The cubic root of 53208028 is about 376.1193882985.

The spelling of 53208028 in words is "fifty-three million, two hundred eight thousand, twenty-eight".

Divisors: 1 2 4 17 31 34 43 62 68 86 124 172 527 587 731 1054 1174 1333 1462 2108 2348 2666 2924 5332 9979 18197 19958 22661 25241 36394 39916 45322 50482 72788 90644 100964 309349 429097 618698 782471 858194 1237396 1564942 1716388 3129884 13302007 26604014 53208028