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10131223 = 411092267
BaseRepresentation
bin100110101001…
…011100010111
3201001201102111
4212221130113
510043144343
61001051451
7152054044
oct46513427
921051374
1010131223
11579a813
123486b87
13213950b
1414ba1cb
15d51c9d
hex9a9717

10131223 has 8 divisors (see below), whose sum is σ = 10478160. Its totient is φ = 9789120.

The previous prime is 10131211. The next prime is 10131227. The reversal of 10131223 is 32213101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10131223 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 (10131227) 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 7 ways as a sum of consecutive naturals, for example, 3336 + ... + 5602.

It is an arithmetic number, because the mean of its divisors is an integer number (1309770).

Almost surely, 210131223 is an apocalyptic number.

10131223 is a deficient number, since it is larger than the sum of its proper divisors (346937).

10131223 is a wasteful number, since it uses less digits than its factorization.

10131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 10131223 is about 3182.9582152457. The cubic root of 10131223 is about 216.3817480446.

Adding to 10131223 its reverse (32213101), we get a palindrome (42344324).

The spelling of 10131223 in words is "ten million, one hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 41 109 2267 4469 92947 247103 10131223