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544444544 = 2771931981
BaseRepresentation
bin100000011100111…
…001000010000000
31101221110122111202
4200130321002000
52103334211134
6130005200332
716330462610
oct4034710200
91357418452
10544444544
1125a363276
121324000a8
1388a46947
1452444a40
1532be6d7e
hex20739080

544444544 has 64 divisors (see below), whose sum is σ = 1304865600. Its totient is φ = 221045760.

The previous prime is 544444541. The next prime is 544444573. The reversal of 544444544 is 445444445.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×5444445442 = 592839722982735872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 544444498 and 544444507.

It is not an unprimeable number, because it can be changed into a prime (544444541) 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, 1034 + ... + 33014.

It is an arithmetic number, because the mean of its divisors is an integer number (20388525).

Almost surely, 2544444544 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 544444544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652432800).

544444544 is an abundant number, since it is smaller than the sum of its proper divisors (760421056).

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

544444544 is a wasteful number, since it uses less digits than its factorization.

544444544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32021 (or 32009 counting only the distinct ones).

The product of its digits is 409600, while the sum is 38.

The square root of 544444544 is about 23333.3354666666. The cubic root of 544444544 is about 816.5533220086.

Adding to 544444544 its reverse (445444445), we get a palindrome (989888989).

Subtracting from 544444544 its reverse (445444445), we obtain a palindrome (99000099).

The spelling of 544444544 in words is "five hundred forty-four million, four hundred forty-four thousand, five hundred forty-four".

Divisors: 1 2 4 7 8 14 16 19 28 32 38 56 64 76 112 128 133 152 224 266 304 448 532 608 896 1064 1216 2128 2432 4256 8512 17024 31981 63962 127924 223867 255848 447734 511696 607639 895468 1023392 1215278 1790936 2046784 2430556 3581872 4093568 4253473 4861112 7163744 8506946 9722224 14327488 17013892 19444448 28654976 34027784 38888896 68055568 77777792 136111136 272222272 544444544