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54020221541 = 1113680355529
BaseRepresentation
bin110010010011110110…
…110010101001100101
312011102202120120210222
4302103312302221211
51341113134042131
640452212454125
73621446210156
oct622366625145
9164382516728
1054020221541
1120a01008aa0
12a57731a345
13512b921640
14288662992d
1516127b187b
hexc93db2a65

54020221541 has 16 divisors (see below), whose sum is σ = 63474788160. Its totient is φ = 45324174720.

The previous prime is 54020221537. The next prime is 54020221609. The reversal of 54020221541 is 14512202045.

It is not a de Polignac number, because 54020221541 - 22 = 54020221537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54020221541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54020221501) 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 15 ways as a sum of consecutive naturals, for example, 945065 + ... + 1000593.

It is an arithmetic number, because the mean of its divisors is an integer number (3967174260).

Almost surely, 254020221541 is an apocalyptic number.

It is an amenable number.

54020221541 is a deficient number, since it is larger than the sum of its proper divisors (9454566619).

54020221541 is a wasteful number, since it uses less digits than its factorization.

54020221541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62356.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 54020221541 its reverse (14512202045), we get a palindrome (68532423586).

The spelling of 54020221541 in words is "fifty-four billion, twenty million, two hundred twenty-one thousand, five hundred forty-one".

Divisors: 1 11 13 143 6803 55529 74833 88439 610819 721877 972829 7940647 377763787 4155401657 4910929231 54020221541