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53087063 = 65980557
BaseRepresentation
bin1100101010000…
…0101101010111
310200220002202112
43022200231113
5102042241223
65133501235
71213142531
oct312405527
9120802675
1053087063
1127a6a107
121594181b
13acc9583
14709c851
1549d9778
hex32a0b57

53087063 has 4 divisors (see below), whose sum is σ = 53168280. Its totient is φ = 53005848.

The previous prime is 53087057. The next prime is 53087071. The reversal of 53087063 is 36078035.

It is a happy number.

53087063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53087063 - 28 = 53086807 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 (53087053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39620 + ... + 40937.

It is an arithmetic number, because the mean of its divisors is an integer number (13292070).

Almost surely, 253087063 is an apocalyptic number.

53087063 is a deficient number, since it is larger than the sum of its proper divisors (81217).

53087063 is an equidigital number, since it uses as much as digits as its factorization.

53087063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81216.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 53087063 is about 7286.0869470519. The cubic root of 53087063 is about 375.8341443513.

Subtracting from 53087063 its reverse (36078035), we obtain a triangular number (17009028 = T5832).

The spelling of 53087063 in words is "fifty-three million, eighty-seven thousand, sixty-three".

Divisors: 1 659 80557 53087063