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54750572805769 = 2232331812
BaseRepresentation
bin11000111001011100111000…
…11100010111111010001001
321011212002210120000002020021
430130232130130113322021
524134013133114241034
6312240022123300441
714350412143131211
oct1434563434277211
9234762716002207
1054750572805769
11164996510058a5
12618304007a721
132471c592c2089
14d73d28687241
1564e2c49b26b4
hex31cb9c717e89

54750572805769 has 9 divisors (see below), whose sum is σ = 54998849588679. Its totient is φ = 54503411883480.

The previous prime is 54750572805763. The next prime is 54750572805781. The reversal of 54750572805769 is 96750827505745.

The square root of 54750572805769 is 7399363.

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

It can be written as a sum of positive squares in only one way, i.e., 23918095515769 + 30832477290000 = 4890613^2 + 5552700^2 .

It is not a de Polignac number, because 54750572805769 - 237 = 54613133852297 is a prime.

It is a super-2 number, since 2×547505728057692 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54750572805698 and 54750572805707.

It is not an unprimeable number, because it can be changed into a prime (54750572805763) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1650041359 + ... + 1650074539.

It is an arithmetic number, because the mean of its divisors is an integer number (6110983287631).

Almost surely, 254750572805769 is an apocalyptic number.

54750572805769 is the 7399363-rd square number.

54750572805769 is the 3699682-nd centered octagonal number.

It is an amenable number.

54750572805769 is a deficient number, since it is larger than the sum of its proper divisors (248276782910).

54750572805769 is an frugal number, since it uses more digits than its factorization.

54750572805769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66808 (or 33404 counting only the distinct ones).

The product of its (nonzero) digits is 740880000, while the sum is 70.

The spelling of 54750572805769 in words is "fifty-four trillion, seven hundred fifty billion, five hundred seventy-two million, eight hundred five thousand, seven hundred sixty-nine".

Divisors: 1 223 33181 49729 7399363 1100978761 1650057949 245518263703 54750572805769