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54445854444 = 22335312853129
BaseRepresentation
bin110010101101001110…
…011100111011101100
312012112102110222101120
4302231032130323230
51343001114320234
641002335340540
73635135061342
oct625516347354
9165472428346
1054445854444
11210aa2a1323
12a675981750
135198b69227
1428c6d83992
151639d3a049
hexcad39ceec

54445854444 has 24 divisors (see below), whose sum is σ = 127400224560. Its totient is φ = 18097204224.

The previous prime is 54445854439. The next prime is 54445854481. The reversal of 54445854444 is 44445854445.

It is a super-2 number, since 2×544458544442 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6422329 + ... + 6430800.

It is an arithmetic number, because the mean of its divisors is an integer number (5308342690).

Almost surely, 254445854444 is an apocalyptic number.

It is an amenable number.

54445854444 is an abundant number, since it is smaller than the sum of its proper divisors (72954370116).

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

54445854444 is a wasteful number, since it uses less digits than its factorization.

54445854444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12853489 (or 12853487 counting only the distinct ones).

The product of its digits is 16384000, while the sum is 51.

Subtracting from 54445854444 its reverse (44445854445), we obtain a palindrome (9999999999).

The spelling of 54445854444 in words is "fifty-four billion, four hundred forty-five million, eight hundred fifty-four thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 353 706 1059 1412 2118 4236 12853129 25706258 38559387 51412516 77118774 154237548 4537154537 9074309074 13611463611 18148618148 27222927222 54445854444