Search a number
-
+
11252813 = 111378691
BaseRepresentation
bin101010111011…
…010001001101
3210011200221212
4222323101031
510340042223
61041104205
7164435015
oct52732115
923150855
1011252813
116396450
123928065
13243cb90
1416ccc45
15ec4278
hexabb44d

11252813 has 8 divisors (see below), whose sum is σ = 13220256. Its totient is φ = 9442800.

The previous prime is 11252809. The next prime is 11252821. The reversal of 11252813 is 31825211.

It is a happy number.

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 11252813 - 22 = 11252809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11252413) 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, 39203 + ... + 39488.

It is an arithmetic number, because the mean of its divisors is an integer number (1652532).

Almost surely, 211252813 is an apocalyptic number.

11252813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11252813 is a deficient number, since it is larger than the sum of its proper divisors (1967443).

11252813 is a wasteful number, since it uses less digits than its factorization.

11252813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78715.

The product of its digits is 480, while the sum is 23.

The square root of 11252813 is about 3354.5212773211. The cubic root of 11252813 is about 224.0889116108.

It can be divided in two parts, 112 and 52813, that added together give a palindrome (52925).

The spelling of 11252813 in words is "eleven million, two hundred fifty-two thousand, eight hundred thirteen".

Divisors: 1 11 13 143 78691 865601 1022983 11252813