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54187925089 = 2322923492
BaseRepresentation
bin110010011101110110…
…100001111001100001
312011212110010210211111
4302131312201321201
51341434102100324
640521003143321
73625553522614
oct623566417141
9164773123744
1054187925089
1120a87742171
12a603514b41
1351575ab5cc
1428a0a0217b
15162238b794
hexc9dda1e61

54187925089 has 27 divisors (see below), whose sum is σ = 58835617113. Its totient is φ = 49901226144.

The previous prime is 54187925087. The next prime is 54187925171. The reversal of 54187925089 is 98052978145.

The square root of 54187925089 is 232783.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3796654689 + 50391270400 = 61617^2 + 224480^2 .

It is not a de Polignac number, because 54187925089 - 21 = 54187925087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54187925087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 155266087 + ... + 155266435.

Almost surely, 254187925089 is an apocalyptic number.

54187925089 is the 232783-rd square number.

54187925089 is the 116392-nd centered octagonal number.

It is an amenable number.

54187925089 is a deficient number, since it is larger than the sum of its proper divisors (4647692024).

54187925089 is an frugal number, since it uses more digits than its factorization.

54187925089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 58.

The spelling of 54187925089 in words is "fifty-four billion, one hundred eighty-seven million, nine hundred twenty-five thousand, eighty-nine".

Divisors: 1 23 29 349 529 667 841 8027 10121 15341 19343 121801 184621 232783 293509 444889 2801423 3532229 5354009 6750707 64432729 81241267 102434641 155266261 1868549141 2355996743 54187925089