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53013751 = 731244303
BaseRepresentation
bin1100101000111…
…0110011110111
310200202101012021
43022032303313
5102032420001
65132134011
71212416020
oct312166367
9120671167
1053013751
1127a1a01a
1215907307
13aca20ab
14707dc47
1549c2ba1
hex328ecf7

53013751 has 8 divisors (see below), whose sum is σ = 62541824. Its totient is φ = 43974360.

The previous prime is 53013733. The next prime is 53013757. The reversal of 53013751 is 15731035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53013751 - 213 = 53005559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53013757) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121935 + ... + 122368.

It is an arithmetic number, because the mean of its divisors is an integer number (7817728).

Almost surely, 253013751 is an apocalyptic number.

53013751 is a deficient number, since it is larger than the sum of its proper divisors (9528073).

53013751 is a wasteful number, since it uses less digits than its factorization.

53013751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244341.

The product of its (nonzero) digits is 1575, while the sum is 25.

The square root of 53013751 is about 7281.0542505876. The cubic root of 53013751 is about 375.6610585787.

Adding to 53013751 its reverse (15731035), we get a palindrome (68744786).

The spelling of 53013751 in words is "fifty-three million, thirteen thousand, seven hundred fifty-one".

Divisors: 1 7 31 217 244303 1710121 7573393 53013751