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13404269 = 59227191
BaseRepresentation
bin110011001000…
…100001101101
3221020000012102
4303020201231
511412414034
61155144445
7221635334
oct63104155
927200172
1013404269
11762590a
1245a5125
132a14228
141accd1b
15129b97e
hexcc886d

13404269 has 4 divisors (see below), whose sum is σ = 13631520. Its totient is φ = 13177020.

The previous prime is 13404247. The next prime is 13404271. The reversal of 13404269 is 96240431.

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: 96240431 = 713748633.

It is a cyclic number.

It is not a de Polignac number, because 13404269 - 212 = 13400173 is a prime.

It is a super-2 number, since 2×134042692 = 359348854848722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13404289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113537 + ... + 113654.

It is an arithmetic number, because the mean of its divisors is an integer number (3407880).

Almost surely, 213404269 is an apocalyptic number.

It is an amenable number.

13404269 is a deficient number, since it is larger than the sum of its proper divisors (227251).

13404269 is an equidigital number, since it uses as much as digits as its factorization.

13404269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227250.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 13404269 is about 3661.1840980754. The cubic root of 13404269 is about 237.5459944162.

The spelling of 13404269 in words is "thirteen million, four hundred four thousand, two hundred sixty-nine".

Divisors: 1 59 227191 13404269