Search a number
-
+
13250417 = 19767261
BaseRepresentation
bin110010100010…
…111101110001
3220221012011012
4302202331301
511343003132
61152000305
7220424645
oct62427561
926835135
1013250417
117530264
124530095
13298c1ab
141a8cc25
15126b0b2
hexca2f71

13250417 has 4 divisors (see below), whose sum is σ = 13317876. Its totient is φ = 13182960.

The previous prime is 13250411. The next prime is 13250443. The reversal of 13250417 is 71405231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11771761 + 1478656 = 3431^2 + 1216^2 .

It is a cyclic number.

It is not a de Polignac number, because 13250417 - 210 = 13249393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13250392 and 13250401.

It is not an unprimeable number, because it can be changed into a prime (13250411) 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 3 ways as a sum of consecutive naturals, for example, 33434 + ... + 33827.

It is an arithmetic number, because the mean of its divisors is an integer number (3329469).

Almost surely, 213250417 is an apocalyptic number.

It is an amenable number.

13250417 is a deficient number, since it is larger than the sum of its proper divisors (67459).

13250417 is an equidigital number, since it uses as much as digits as its factorization.

13250417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67458.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 13250417 is about 3640.1122235448. The cubic root of 13250417 is about 236.6336569271.

Adding to 13250417 its reverse (71405231), we get a palindrome (84655648).

The spelling of 13250417 in words is "thirteen million, two hundred fifty thousand, four hundred seventeen".

Divisors: 1 197 67261 13250417