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13400317 = 74146691
BaseRepresentation
bin110011000111…
…100011111101
3221012210210001
4303013203331
511412302232
61155114301
7221620660
oct63074375
927183701
1013400317
117622947
1245a2991
132a124a8
141acb6d7
15129a6e7
hexcc78fd

13400317 has 8 divisors (see below), whose sum is σ = 15688512. Its totient is φ = 11205600.

The previous prime is 13400281. The next prime is 13400341. The reversal of 13400317 is 71300431.

13400317 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2k-13400317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13400294 and 13400303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23059 + ... + 23632.

It is an arithmetic number, because the mean of its divisors is an integer number (1961064).

Almost surely, 213400317 is an apocalyptic number.

It is an amenable number.

13400317 is a deficient number, since it is larger than the sum of its proper divisors (2288195).

13400317 is an equidigital number, since it uses as much as digits as its factorization.

13400317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46739.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 13400317 is about 3660.6443421890. The cubic root of 13400317 is about 237.5226467786.

Adding to 13400317 its reverse (71300431), we get a palindrome (84700748).

The spelling of 13400317 in words is "thirteen million, four hundred thousand, three hundred seventeen".

Divisors: 1 7 41 287 46691 326837 1914331 13400317