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54192969642 = 2371290308801
BaseRepresentation
bin110010011110001001…
…110001011110101010
312011212210122002122210
4302132021301132222
51341441400012032
640521303225550
73625644433020
oct623611613652
9164783562583
1054192969642
1120a8a578219
12a6051482b6
135158656756
1428a1556710
151622a362cc
hexc9e2717aa

54192969642 has 16 divisors (see below), whose sum is σ = 123869644992. Its totient is φ = 15483705600.

The previous prime is 54192969601. The next prime is 54192969647. The reversal of 54192969642 is 24696929145.

It is not an unprimeable number, because it can be changed into a prime (54192969647) 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 7 ways as a sum of consecutive naturals, for example, 645154359 + ... + 645154442.

It is an arithmetic number, because the mean of its divisors is an integer number (7741852812).

Almost surely, 254192969642 is an apocalyptic number.

54192969642 is an abundant number, since it is smaller than the sum of its proper divisors (69676675350).

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

54192969642 is a wasteful number, since it uses less digits than its factorization.

54192969642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290308813.

The product of its digits is 8398080, while the sum is 57.

The spelling of 54192969642 in words is "fifty-four billion, one hundred ninety-two million, nine hundred sixty-nine thousand, six hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 1290308801 2580617602 3870926403 7741852806 9032161607 18064323214 27096484821 54192969642