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1044242231 = 3728222763
BaseRepresentation
bin111110001111011…
…101111100110111
32200202221000001012
4332033131330313
54114311222411
6251341422435
734606624664
oct7617357467
92622830035
101044242231
114964a170a
1225186aa1b
1313845a916
149c986a6b
1561a2018b
hex3e3ddf37

1044242231 has 4 divisors (see below), whose sum is σ = 1072465032. Its totient is φ = 1016019432.

The previous prime is 1044242209. The next prime is 1044242233. The reversal of 1044242231 is 1322424401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322424401 = 2659497339.

It is a cyclic number.

It is not a de Polignac number, because 1044242231 - 26 = 1044242167 is a prime.

It is a super-2 number, since 2×10442422312 = 2180883674007714722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1044242197 and 1044242206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044242233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14111345 + ... + 14111418.

It is an arithmetic number, because the mean of its divisors is an integer number (268116258).

Almost surely, 21044242231 is an apocalyptic number.

1044242231 is a deficient number, since it is larger than the sum of its proper divisors (28222801).

1044242231 is an equidigital number, since it uses as much as digits as its factorization.

1044242231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28222800.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1044242231 is about 32314.7370560245. The cubic root of 1044242231 is about 1014.5351170948.

Adding to 1044242231 its reverse (1322424401), we get a palindrome (2366666632).

The spelling of 1044242231 in words is "one billion, forty-four million, two hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 37 28222763 1044242231