Search a number
-
+
11631793 = 25574549
BaseRepresentation
bin101100010111…
…110010110001
3210212221211011
4230113302301
510434204133
61053150521
7200603635
oct54276261
923787734
1011631793
116625158
123a8b441
132543524
14178adc5
15104b6cd
hexb17cb1

11631793 has 4 divisors (see below), whose sum is σ = 11638900. Its totient is φ = 11624688.

The previous prime is 11631779. The next prime is 11631799. The reversal of 11631793 is 39713611.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39713611 = 75673373.

It can be written as a sum of positive squares in 2 ways, for example, as 6822544 + 4809249 = 2612^2 + 2193^2 .

It is a cyclic number.

It is not a de Polignac number, because 11631793 - 25 = 11631761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11631799) 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, 283 + ... + 4831.

It is an arithmetic number, because the mean of its divisors is an integer number (2909725).

Almost surely, 211631793 is an apocalyptic number.

It is an amenable number.

11631793 is a deficient number, since it is larger than the sum of its proper divisors (7107).

11631793 is an equidigital number, since it uses as much as digits as its factorization.

11631793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7106.

The product of its digits is 3402, while the sum is 31.

The square root of 11631793 is about 3410.5414526142. The cubic root of 11631793 is about 226.5768605689.

The spelling of 11631793 in words is "eleven million, six hundred thirty-one thousand, seven hundred ninety-three".

Divisors: 1 2557 4549 11631793