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9131023 = 1121723193
BaseRepresentation
bin100010110101…
…010000001111
3122011220102001
4202311100033
54314143043
6523413131
7140420026
oct42652017
918156361
109131023
115177300
1230841a7
131b79195
1412d98bd
15c0574d
hex8b540f

9131023 has 24 divisors (see below), whose sum is σ = 11146464. Its totient is φ = 7434240.

The previous prime is 9131021. The next prime is 9131033. The reversal of 9131023 is 3201319.

9131023 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9131023 - 21 = 9131021 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 (9131021) 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 23 ways as a sum of consecutive naturals, for example, 47215 + ... + 47407.

It is an arithmetic number, because the mean of its divisors is an integer number (464436).

Almost surely, 29131023 is an apocalyptic number.

9131023 is a deficient number, since it is larger than the sum of its proper divisors (2015441).

9131023 is a wasteful number, since it uses less digits than its factorization.

9131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 9131023 is about 3021.7582629985. The cubic root of 9131023 is about 209.0129262550.

It can be divided in two parts, 913 and 1023, that added together give a square (1936 = 442).

The spelling of 9131023 in words is "nine million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 11 17 23 121 187 193 253 391 2057 2123 2783 3281 4301 4439 23353 36091 47311 48829 75463 397001 537119 830093 9131023