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53045253 = 3317163709
BaseRepresentation
bin1100101001011…
…0100000000101
310200210222102000
43022112200011
5102034422003
65132535513
71212606612
oct312264005
9120728360
1053045253
1127a40758
1215921599
13acb3531
14708b509
1549cc1a3
hex3296805

53045253 has 32 divisors (see below), whose sum is σ = 83836800. Its totient is φ = 33032448.

The previous prime is 53045249. The next prime is 53045327. The reversal of 53045253 is 35254035.

It is not a de Polignac number, because 53045253 - 22 = 53045249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53045203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74463 + ... + 75171.

It is an arithmetic number, because the mean of its divisors is an integer number (2619900).

Almost surely, 253045253 is an apocalyptic number.

It is an amenable number.

53045253 is a deficient number, since it is larger than the sum of its proper divisors (30791547).

53045253 is a wasteful number, since it uses less digits than its factorization.

53045253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898 (or 892 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 53045253 is about 7283.2172149401. The cubic root of 53045253 is about 375.7354526820.

Adding to 53045253 its reverse (35254035), we get a palindrome (88299288).

The spelling of 53045253 in words is "fifty-three million, forty-five thousand, two hundred fifty-three".

Divisors: 1 3 9 17 27 51 153 163 459 489 709 1467 2127 2771 4401 6381 8313 12053 19143 24939 36159 74817 108477 115567 325431 346701 1040103 1964639 3120309 5893917 17681751 53045253