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31044404 = 2219408479
BaseRepresentation
bin111011001101…
…1001100110100
32011102012220202
41312123030310
530421410104
63025220032
7524605316
oct166331464
964365822
1031044404
1116584136
12a491618
13657c491
1441a17b6
152ad351e
hex1d9b334

31044404 has 12 divisors (see below), whose sum is σ = 57187200. Its totient is φ = 14705208.

The previous prime is 31044401. The next prime is 31044437. The reversal of 31044404 is 40444013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31044401) 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, 204164 + ... + 204315.

It is an arithmetic number, because the mean of its divisors is an integer number (4765600).

Almost surely, 231044404 is an apocalyptic number.

It is an amenable number.

31044404 is a deficient number, since it is larger than the sum of its proper divisors (26142796).

31044404 is a wasteful number, since it uses less digits than its factorization.

31044404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408502 (or 408500 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 31044404 is about 5571.7505328218. The cubic root of 31044404 is about 314.2879827857.

Adding to 31044404 its reverse (40444013), we get a palindrome (71488417).

The spelling of 31044404 in words is "thirty-one million, forty-four thousand, four hundred four".

Divisors: 1 2 4 19 38 76 408479 816958 1633916 7761101 15522202 31044404