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54205124969 = 313733236261
BaseRepresentation
bin110010011110111000…
…001001000101101001
312011220122111122122002
4302132320021011221
51342003002444334
640522415540345
73626152650212
oct623670110551
9164818448562
1054205124969
1120a9641a746
12a60922a6b5
13515b021358
1428a2ddc409
151623b37b7e
hexc9ee09169

54205124969 has 8 divisors (see below), whose sum is σ = 54452720712. Its totient is φ = 53958003840.

The previous prime is 54205124951. The next prime is 54205125001. The reversal of 54205124969 is 96942150245.

It can be written as a sum of positive squares in 4 ways, for example, as 17632387369 + 36572737600 = 132787^2 + 191240^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-54205124969 is a prime.

It is a super-2 number, since 2×542051249692 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54205121969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111299 + ... + 347559.

It is an arithmetic number, because the mean of its divisors is an integer number (6806590089).

Almost surely, 254205124969 is an apocalyptic number.

It is an amenable number.

54205124969 is a deficient number, since it is larger than the sum of its proper divisors (247595743).

54205124969 is a wasteful number, since it uses less digits than its factorization.

54205124969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237307.

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 54205124969 in words is "fifty-four billion, two hundred five million, one hundred twenty-four thousand, nine hundred sixty-nine".

Divisors: 1 313 733 229429 236261 73949693 173179313 54205124969