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54209092864 = 28211754269
BaseRepresentation
bin110010011111000111…
…010001110100000000
312011220220222020120011
4302133013101310000
51342010011432424
640523040554304
73626231454343
oct623707216400
9164826866504
1054209092864
1120a9868a8a3
12a60a622994
13515bab0414
1428a375245a
15162416d694
hexc9f1d1d00

54209092864 has 18 divisors (see below), whose sum is σ = 108206431970. Its totient is φ = 27104546304.

The previous prime is 54209092853. The next prime is 54209092867. The reversal of 54209092864 is 46829090245.

It can be written as a sum of positive squares in only one way, i.e., 41700907264 + 12508185600 = 204208^2 + 111840^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54209092867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105876879 + ... + 105877390.

Almost surely, 254209092864 is an apocalyptic number.

It is an amenable number.

54209092864 is a deficient number, since it is larger than the sum of its proper divisors (53997339106).

54209092864 is an equidigital number, since it uses as much as digits as its factorization.

54209092864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211754285 (or 211754271 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 54209092864 in words is "fifty-four billion, two hundred nine million, ninety-two thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 32 64 128 256 211754269 423508538 847017076 1694034152 3388068304 6776136608 13552273216 27104546432 54209092864