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13660053 = 3114311
BaseRepresentation
bin110100000110…
…111110010101
3221201000001220
4310012332111
511444110203
61204440553
7224052141
oct64067625
927630056
1013660053
117790000
1246a9159
132aa3794
141b58221
1512ec653
hexd06f95

13660053 has 20 divisors (see below), whose sum is σ = 20099040. Its totient is φ = 8252200.

The previous prime is 13660051. The next prime is 13660081. The reversal of 13660053 is 35006631.

It is not a de Polignac number, because 13660053 - 21 = 13660051 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13660051) 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 19 ways as a sum of consecutive naturals, for example, 43768 + ... + 44078.

It is an arithmetic number, because the mean of its divisors is an integer number (1004952).

Almost surely, 213660053 is an apocalyptic number.

It is an amenable number.

13660053 is a deficient number, since it is larger than the sum of its proper divisors (6438987).

13660053 is an frugal number, since it uses more digits than its factorization.

13660053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 13660053 is about 3695.9508925309. The cubic root of 13660053 is about 239.0474570653.

Adding to 13660053 its reverse (35006631), we get a palindrome (48666684).

It can be divided in two parts, 13 and 660053, that added together give a palindrome (660066).

The spelling of 13660053 in words is "thirteen million, six hundred sixty thousand, fifty-three".

Divisors: 1 3 11 33 121 311 363 933 1331 3421 3993 10263 14641 37631 43923 112893 413941 1241823 4553351 13660053