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231441023 = 1141513173
BaseRepresentation
bin11011100101110…
…00001001111111
3121010111102101202
431302320021333
5433222103043
634544330115
75510134112
oct1562701177
9533442352
10231441023
11109708080
126561393b
1338c45168
1422a48579
15154ba1b8
hexdcb827f

231441023 has 8 divisors (see below), whose sum is σ = 258639696. Its totient is φ = 205268800.

The previous prime is 231441017. The next prime is 231441037. The reversal of 231441023 is 320144132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231441023 - 26 = 231440959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231440986 and 231441004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231441013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256136 + ... + 257037.

It is an arithmetic number, because the mean of its divisors is an integer number (32329962).

Almost surely, 2231441023 is an apocalyptic number.

231441023 is a deficient number, since it is larger than the sum of its proper divisors (27198673).

231441023 is a wasteful number, since it uses less digits than its factorization.

231441023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513225.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 231441023 is about 15213.1858267754. The cubic root of 231441023 is about 613.9694756123.

Adding to 231441023 its reverse (320144132), we get a palindrome (551585155).

The spelling of 231441023 in words is "two hundred thirty-one million, four hundred forty-one thousand, twenty-three".

Divisors: 1 11 41 451 513173 5644903 21040093 231441023