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52404404 = 22131759281
BaseRepresentation
bin1100011111101…
…0000010110100
310122121102022212
43013322002310
5101403420104
65111112552
71204300343
oct307720264
9118542285
1052404404
1127643228
1215672758
13ab1a930
146d61b5a
15490236e
hex31fa0b4

52404404 has 24 divisors (see below), whose sum is σ = 104573448. Its totient is φ = 22763520.

The previous prime is 52404403. The next prime is 52404409. The reversal of 52404404 is 40440425.

52404404 = T17 + T18 + ... + T679.

52404404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15194404 + 37210000 = 3898^2 + 6100^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52404404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52404403) 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, 28757 + ... + 30524.

It is an arithmetic number, because the mean of its divisors is an integer number (4357227).

Almost surely, 252404404 is an apocalyptic number.

It is an amenable number.

52404404 is a deficient number, since it is larger than the sum of its proper divisors (52169044).

52404404 is a wasteful number, since it uses less digits than its factorization.

52404404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59315 (or 59313 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 52404404 is about 7239.0886166699. The cubic root of 52404404 is about 374.2162094529.

Adding to 52404404 its reverse (40440425), we get a palindrome (92844829).

The spelling of 52404404 in words is "fifty-two million, four hundred four thousand, four hundred four".

Divisors: 1 2 4 13 17 26 34 52 68 221 442 884 59281 118562 237124 770653 1007777 1541306 2015554 3082612 4031108 13101101 26202202 52404404