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744440404444 = 221121221797281
BaseRepresentation
bin10101101010101000001…
…10110001100111011100
32122011112022221212000021
422311110012301213130
544144103220420234
61325554033241524
7104532633013612
oct12652406614734
92564468855007
10744440404444
11267796223280
1210033b7032a4
135527b45b149
14280615076b2
15145708099b4
hexad541b19dc

744440404444 has 24 divisors (see below), whose sum is σ = 1421273162736. Its totient is φ = 338365632000.

The previous prime is 744440404441. The next prime is 744440404469. The reversal of 744440404444 is 444404044447.

It is a happy number.

744440404444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 744440404444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744440404441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535084 + ... + 1332364.

It is an arithmetic number, because the mean of its divisors is an integer number (59219715114).

Almost surely, 2744440404444 is an apocalyptic number.

It is an amenable number.

744440404444 is a deficient number, since it is larger than the sum of its proper divisors (676832758292).

744440404444 is a wasteful number, since it uses less digits than its factorization.

744440404444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818517 (or 818515 counting only the distinct ones).

The product of its (nonzero) digits is 1835008, while the sum is 43.

The spelling of 744440404444 in words is "seven hundred forty-four billion, four hundred forty million, four hundred four thousand, four hundred forty-four".

Divisors: 1 2 4 11 22 44 21221 42442 84884 233431 466862 797281 933724 1594562 3189124 8770091 17540182 35080364 16919100101 33838200202 67676400404 186110101111 372220202222 744440404444