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54905544550945 = 5112834878172313
BaseRepresentation
bin11000111101111101100010…
…11110101010101000100001
321012101220210210200102100001
430132332301132222220201
524144033023401112240
6312435131533500001
714364536402210314
oct1436766136525041
9235356723612301
1054905544550945
1116549346572760
1261a908b941601
1324837558b958a
14d7b62a46297b
15653344cb689a
hex31efb17aaa21

54905544550945 has 32 divisors (see below), whose sum is σ = 72132805413504. Its totient is φ = 39788839180800.

The previous prime is 54905544550943. The next prime is 54905544551047.

It is a happy number.

54905544550945 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54905544550945 - 21 = 54905544550943 is a prime.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (54905544550943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 759240109 + ... + 759312421.

It is an arithmetic number, because the mean of its divisors is an integer number (2254150169172).

Almost surely, 254905544550945 is an apocalyptic number.

54905544550945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54905544550945 is a deficient number, since it is larger than the sum of its proper divisors (17227260862559).

54905544550945 is a wasteful number, since it uses less digits than its factorization.

54905544550945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121393.

The product of its (nonzero) digits is 324000000, while the sum is 64.

The spelling of 54905544550945 in words is "fifty-four trillion, nine hundred five billion, five hundred forty-four million, five hundred fifty thousand, nine hundred forty-five".

Divisors: 1 5 11 55 283 1415 3113 15565 48781 72313 243905 361565 536591 795443 2682955 3977215 13805023 20464579 69025115 102322895 151855253 225110369 759276265 1125551845 3527500453 17637502265 38802504983 194012524915 998282628199 4991413140995 10981108910189 54905544550945