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53466013 = 275319421
BaseRepresentation
bin1100101111110…
…1001110011101
310201121100120201
43023331032131
5102141403023
65145543501
71216311406
oct313751635
9121540521
1053466013
11281a8897
1215aa4b91
13b0ccbc3
14715a9ad
154a61bad
hex32fd39d

53466013 has 4 divisors (see below), whose sum is σ = 53488188. Its totient is φ = 53443840.

The previous prime is 53466011. The next prime is 53466089. The reversal of 53466013 is 31066435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31066435 = 56213287.

It can be written as a sum of positive squares in 2 ways, for example, as 51236964 + 2229049 = 7158^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 53466013 - 21 = 53466011 is a prime.

It is a super-2 number, since 2×534660132 = 5717229092232338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53466011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6958 + ... + 12463.

It is an arithmetic number, because the mean of its divisors is an integer number (13372047).

Almost surely, 253466013 is an apocalyptic number.

It is an amenable number.

53466013 is a deficient number, since it is larger than the sum of its proper divisors (22175).

53466013 is a wasteful number, since it uses less digits than its factorization.

53466013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22174.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 53466013 is about 7312.0457465746. The cubic root of 53466013 is about 376.7262939340.

The spelling of 53466013 in words is "fifty-three million, four hundred sixty-six thousand, thirteen".

Divisors: 1 2753 19421 53466013