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54444122015 = 541826332141
BaseRepresentation
bin110010101101000111…
…110101111110011111
312012112022012221221112
4302231013311332133
51343000143401030
641002234252235
73635114254463
oct625507657637
9165468187845
1054444122015
11210a9318768
12a67528707b
1351986b081a
1428c6a524a3
151639ae6a95
hexcad1f5f9f

54444122015 has 16 divisors (see below), whose sum is σ = 66936614976. Its totient is φ = 42486508800.

The previous prime is 54444122003. The next prime is 54444122017. The reversal of 54444122015 is 51022144445.

It is not a de Polignac number, because 54444122015 - 24 = 54444121999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54444122017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1677845 + ... + 1709985.

It is an arithmetic number, because the mean of its divisors is an integer number (4183538436).

Almost surely, 254444122015 is an apocalyptic number.

54444122015 is a deficient number, since it is larger than the sum of its proper divisors (12492492961).

54444122015 is a wasteful number, since it uses less digits than its factorization.

54444122015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40450.

The product of its (nonzero) digits is 25600, while the sum is 32.

The spelling of 54444122015 in words is "fifty-four billion, four hundred forty-four million, one hundred twenty-two thousand, fifteen".

Divisors: 1 5 41 205 8263 32141 41315 160705 338783 1317781 1693915 6588905 265581083 1327905415 10888824403 54444122015