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14445444 = 22313217419
BaseRepresentation
bin110111000110…
…101110000100
31000011220102110
4313012232010
512144223234
61233341020
7233532666
oct67065604
930156373
1014445444
118177092
124a07770
132cba100
141cc0536
1514051e9
hexdc6b84

14445444 has 72 divisors (see below), whose sum is σ = 38737440. Its totient is φ = 4173312.

The previous prime is 14445439. The next prime is 14445469. The reversal of 14445444 is 44454441.

14445444 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34267 + ... + 34685.

It is an arithmetic number, because the mean of its divisors is an integer number (538020).

Almost surely, 214445444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14445444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19368720).

14445444 is an abundant number, since it is smaller than the sum of its proper divisors (24291996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14445444 is a wasteful number, since it uses less digits than its factorization.

14445444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 454 counting only the distinct ones).

The product of its digits is 20480, while the sum is 30.

The square root of 14445444 is about 3800.7162482879. The cubic root of 14445444 is about 243.5437366185.

Adding to 14445444 its reverse (44454441), we get a palindrome (58899885).

The spelling of 14445444 in words is "fourteen million, four hundred forty-five thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 102 156 169 204 221 338 419 442 507 663 676 838 884 1014 1257 1326 1676 2028 2514 2652 2873 5028 5447 5746 7123 8619 10894 11492 14246 16341 17238 21369 21788 28492 32682 34476 42738 65364 70811 85476 92599 141622 185198 212433 277797 283244 370396 424866 555594 849732 1111188 1203787 2407574 3611361 4815148 7222722 14445444