Search a number
-
+
13400513 = 72383233
BaseRepresentation
bin110011000111…
…100111000001
3221012211001022
4303013213001
511412304023
61155115225
7221621360
oct63074701
927184038
1013400513
117623005
1245a2b15
132a125c9
141acb7d7
15129a7c8
hexcc79c1

13400513 has 8 divisors (see below), whose sum is σ = 15980928. Its totient is φ = 10986624.

The previous prime is 13400509. The next prime is 13400551. The reversal of 13400513 is 31500431.

13400513 is digitally balanced in base 2, 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 cyclic number.

It is not a de Polignac number, because 13400513 - 22 = 13400509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13400491 and 13400500.

It is not an unprimeable number, because it can be changed into a prime (13400503) 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, 41456 + ... + 41777.

It is an arithmetic number, because the mean of its divisors is an integer number (1997616).

Almost surely, 213400513 is an apocalyptic number.

It is an amenable number.

13400513 is a deficient number, since it is larger than the sum of its proper divisors (2580415).

13400513 is an equidigital number, since it uses as much as digits as its factorization.

13400513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83263.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13400513 is about 3660.6711133343. The cubic root of 13400513 is about 237.5238048162.

Adding to 13400513 its reverse (31500431), we get a palindrome (44900944).

The spelling of 13400513 in words is "thirteen million, four hundred thousand, five hundred thirteen".

Divisors: 1 7 23 161 83233 582631 1914359 13400513