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1240230223 = 17611195979
BaseRepresentation
bin100100111101100…
…0110100101001111
310012102201020000201
41021323012211033
510014444331343
6323022234331
742506532361
oct11173064517
93172636021
101240230223
11587094361
122a74259a7
13169c3ba4b
14baa02d31
1573d3594d
hex49ec694f

1240230223 has 8 divisors (see below), whose sum is σ = 1334713680. Its totient is φ = 1148138880.

The previous prime is 1240230221. The next prime is 1240230227. The reversal of 1240230223 is 3220320421.

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 1240230223 - 21 = 1240230221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1240230223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240230221) 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, 596953 + ... + 599026.

It is an arithmetic number, because the mean of its divisors is an integer number (166839210).

Almost surely, 21240230223 is an apocalyptic number.

1240230223 is a deficient number, since it is larger than the sum of its proper divisors (94483457).

1240230223 is a wasteful number, since it uses less digits than its factorization.

1240230223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196057.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1240230223 is about 35216.9025185350. The cubic root of 1240230223 is about 1074.4035553432.

Adding to 1240230223 its reverse (3220320421), we get a palindrome (4460550644).

The spelling of 1240230223 in words is "one billion, two hundred forty million, two hundred thirty thousand, two hundred twenty-three".

Divisors: 1 17 61 1037 1195979 20331643 72954719 1240230223