Search a number
-
+
13480727 = 131036979
BaseRepresentation
bin110011011011…
…001100010111
3221100220002012
4303123030113
511422340402
61200534435
7222404261
oct63331427
927326065
1013480727
1176782a7
12462141b
132a3cc80
141b0cb31
1512b4452
hexcdb317

13480727 has 4 divisors (see below), whose sum is σ = 14517720. Its totient is φ = 12443736.

The previous prime is 13480721. The next prime is 13480729. The reversal of 13480727 is 72708431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72708431 = 199365369.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13480727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13480693 and 13480702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13480721) 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, 518477 + ... + 518502.

It is an arithmetic number, because the mean of its divisors is an integer number (3629430).

Almost surely, 213480727 is an apocalyptic number.

13480727 is a deficient number, since it is larger than the sum of its proper divisors (1036993).

13480727 is a wasteful number, since it uses less digits than its factorization.

13480727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036992.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 13480727 is about 3671.6109543360. The cubic root of 13480727 is about 237.9967927916.

The spelling of 13480727 in words is "thirteen million, four hundred eighty thousand, seven hundred twenty-seven".

Divisors: 1 13 1036979 13480727