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54391066041 = 3131782037807
BaseRepresentation
bin110010101001111101…
…011100110110111001
312012101121101102211110
4302221331130312321
51342343103103131
640553101150533
73633601301364
oct625175346671
9165347342743
1054391066041
112108137aa54
12a65b55b449
13518a6c5460
1428bd9a10db
151635116646
hexca9f5cdb9

54391066041 has 16 divisors (see below), whose sum is σ = 82694110464. Its totient is φ = 31502517504.

The previous prime is 54391066033. The next prime is 54391066061. The reversal of 54391066041 is 14066019345.

It is not a de Polignac number, because 54391066041 - 23 = 54391066033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (54391066061) 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, 41018241 + ... + 41019566.

It is an arithmetic number, because the mean of its divisors is an integer number (5168381904).

Almost surely, 254391066041 is an apocalyptic number.

54391066041 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

54391066041 is a deficient number, since it is larger than the sum of its proper divisors (28303044423).

54391066041 is a wasteful number, since it uses less digits than its factorization.

54391066041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82037840.

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 54391066041 in words is "fifty-four billion, three hundred ninety-one million, sixty-six thousand, forty-one".

Divisors: 1 3 13 17 39 51 221 663 82037807 246113421 1066491491 1394642719 3199474473 4183928157 18130355347 54391066041