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13040401 = 112940879
BaseRepresentation
bin110001101111…
…101100010001
3220112112001211
4301233230101
511314243101
61143300121
7215561443
oct61575421
926475054
1013040401
1173a74a0
12444a641
13291771a
141a36493
151228c51
hexc6fb11

13040401 has 8 divisors (see below), whose sum is σ = 14716800. Its totient is φ = 11445840.

The previous prime is 13040381. The next prime is 13040449. The reversal of 13040401 is 10404031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13040401 - 27 = 13040273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13040101) 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 7 ways as a sum of consecutive naturals, for example, 20121 + ... + 20758.

It is an arithmetic number, because the mean of its divisors is an integer number (1839600).

Almost surely, 213040401 is an apocalyptic number.

13040401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13040401 is a deficient number, since it is larger than the sum of its proper divisors (1676399).

13040401 is a wasteful number, since it uses less digits than its factorization.

13040401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40919.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 13040401 is about 3611.1495399665. The cubic root of 13040401 is about 235.3767970630.

Adding to 13040401 its reverse (10404031), we get a palindrome (23444432).

The spelling of 13040401 in words is "thirteen million, forty thousand, four hundred one".

Divisors: 1 11 29 319 40879 449669 1185491 13040401