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11407813 = 30737159
BaseRepresentation
bin101011100001…
…000111000101
3210110120120121
4223201013011
510410022223
61044301541
7165651634
oct53410705
923416517
1011407813
11649194a
1239a18b1
1324955b1
14172d51b
15100515d
hexae11c5

11407813 has 4 divisors (see below), whose sum is σ = 11445280. Its totient is φ = 11370348.

The previous prime is 11407811. The next prime is 11407819. The reversal of 11407813 is 31870411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31870411 = 239133349.

It is a cyclic number.

It is not a de Polignac number, because 11407813 - 21 = 11407811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11407811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18273 + ... + 18886.

It is an arithmetic number, because the mean of its divisors is an integer number (2861320).

Almost surely, 211407813 is an apocalyptic number.

It is an amenable number.

11407813 is a deficient number, since it is larger than the sum of its proper divisors (37467).

11407813 is an equidigital number, since it uses as much as digits as its factorization.

11407813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37466.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 11407813 is about 3377.5454105015. The cubic root of 11407813 is about 225.1131151401.

The spelling of 11407813 in words is "eleven million, four hundred seven thousand, eight hundred thirteen".

Divisors: 1 307 37159 11407813