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13404053 = 131031081
BaseRepresentation
bin110011001000…
…011110010101
3221012222220102
4303020132111
511412412203
61155143445
7221634605
oct63103625
927188812
1013404053
117625733
1245a4b85
132a140c0
141accc05
15129b888
hexcc8795

13404053 has 4 divisors (see below), whose sum is σ = 14435148. Its totient is φ = 12372960.

The previous prime is 13404047. The next prime is 13404067. The reversal of 13404053 is 35040431.

13404053 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 can be written as a sum of positive squares in 2 ways, for example, as 5121169 + 8282884 = 2263^2 + 2878^2 .

It is a cyclic number.

It is not a de Polignac number, because 13404053 - 26 = 13403989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404073) 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, 515528 + ... + 515553.

It is an arithmetic number, because the mean of its divisors is an integer number (3608787).

Almost surely, 213404053 is an apocalyptic number.

13404053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13404053 is a deficient number, since it is larger than the sum of its proper divisors (1031095).

13404053 is a wasteful number, since it uses less digits than its factorization.

13404053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031094.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13404053 is about 3661.1545993033. The cubic root of 13404053 is about 237.5447184493.

Adding to 13404053 its reverse (35040431), we get a palindrome (48444484).

The spelling of 13404053 in words is "thirteen million, four hundred four thousand, fifty-three".

Divisors: 1 13 1031081 13404053