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440104031 = 1897923189
BaseRepresentation
bin11010001110110…
…111010001011111
31010200010121020022
4122032313101133
51400131312111
6111400542355
713622552063
oct3216672137
91120117208
10440104031
11206477744
121034819bb
13702435b3
1442643aa3
15289862db
hex1a3b745f

440104031 has 4 divisors (see below), whose sum is σ = 440146200. Its totient is φ = 440061864.

The previous prime is 440103967. The next prime is 440104037. The reversal of 440104031 is 130401044.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 440104031 - 26 = 440103967 is a prime.

It is a super-3 number, since 3×4401040313 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440104037) 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, 7385 + ... + 30573.

It is an arithmetic number, because the mean of its divisors is an integer number (110036550).

Almost surely, 2440104031 is an apocalyptic number.

440104031 is a deficient number, since it is larger than the sum of its proper divisors (42169).

440104031 is a wasteful number, since it uses less digits than its factorization.

440104031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42168.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 440104031 is about 20978.6565585120. The cubic root of 440104031 is about 760.6504306026.

Adding to 440104031 its reverse (130401044), we get a palindrome (570505075).

The spelling of 440104031 in words is "four hundred forty million, one hundred four thousand, thirty-one".

Divisors: 1 18979 23189 440104031