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53053111 = 1923121403
BaseRepresentation
bin1100101001100…
…0011010110111
310200211101012001
43022120122313
5102040144421
65133040131
71212641536
oct312303267
9120741161
1053053111
1127a46651
1215926047
13acb6c97
14709031d
1549ce691
hex32986b7

53053111 has 8 divisors (see below), whose sum is σ = 58273920. Its totient is φ = 48075192.

The previous prime is 53053109. The next prime is 53053123. The reversal of 53053111 is 11135035.

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 53053111 - 21 = 53053109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53053171) 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, 60265 + ... + 61138.

It is an arithmetic number, because the mean of its divisors is an integer number (7284240).

Almost surely, 253053111 is an apocalyptic number.

53053111 is a deficient number, since it is larger than the sum of its proper divisors (5220809).

53053111 is a wasteful number, since it uses less digits than its factorization.

53053111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121445.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 53053111 is about 7283.7566543646. The cubic root of 53053111 is about 375.7540052903.

Adding to 53053111 its reverse (11135035), we get a palindrome (64188146).

The spelling of 53053111 in words is "fifty-three million, fifty-three thousand, one hundred eleven".

Divisors: 1 19 23 437 121403 2306657 2792269 53053111