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53169073 = 391913567
BaseRepresentation
bin1100101011010…
…0101110110001
310201001021020221
43022310232301
5102102402243
65135333041
71213633606
oct312645661
9121037227
1053169073
1128015791
1215981181
13b0279b9
1470c06ad
154a03bed
hex32b4bb1

53169073 has 4 divisors (see below), whose sum is σ = 53186560. Its totient is φ = 53151588.

The previous prime is 53169071. The next prime is 53169091. The reversal of 53169073 is 37096135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37096135 = 57419227.

It is a cyclic number.

It is not a de Polignac number, because 53169073 - 21 = 53169071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53169071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2865 + ... + 10702.

It is an arithmetic number, because the mean of its divisors is an integer number (13296640).

Almost surely, 253169073 is an apocalyptic number.

It is an amenable number.

53169073 is a deficient number, since it is larger than the sum of its proper divisors (17487).

53169073 is a wasteful number, since it uses less digits than its factorization.

53169073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17486.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 53169073 is about 7291.7126246171. The cubic root of 53169073 is about 376.0275769158.

The spelling of 53169073 in words is "fifty-three million, one hundred sixty-nine thousand, seventy-three".

Divisors: 1 3919 13567 53169073