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53730628 = 2277397271
BaseRepresentation
bin1100110011110…
…1110101000100
310202002210120021
43030331311010
5102223340003
65155344524
71221463030
oct314756504
9122083507
1053730628
1128369686
1215bb2144
13b193493
1471c91c0
154ab52bd
hex333dd44

53730628 has 48 divisors (see below), whose sum is σ = 110462464. Its totient is φ = 22394880.

The previous prime is 53730619. The next prime is 53730629. The reversal of 53730628 is 82603735.

It is a zygodrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 53730593 and 53730602.

It is not an unprimeable number, because it can be changed into a prime (53730629) 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, 198133 + ... + 198403.

Almost surely, 253730628 is an apocalyptic number.

It is an amenable number.

53730628 is an abundant number, since it is smaller than the sum of its proper divisors (56731836).

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

53730628 is a wasteful number, since it uses less digits than its factorization.

53730628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 53730628 is about 7330.1178708122. The cubic root of 53730628 is about 377.3467717234.

The spelling of 53730628 in words is "fifty-three million, seven hundred thirty thousand, six hundred twenty-eight".

Divisors: 1 2 4 7 14 28 73 97 146 194 271 292 388 511 542 679 1022 1084 1358 1897 2044 2716 3794 7081 7588 14162 19783 26287 28324 39566 49567 52574 79132 99134 105148 138481 184009 198268 276962 368018 553924 736036 1918951 3837902 7675804 13432657 26865314 53730628