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54081404864 = 261487568273
BaseRepresentation
bin110010010111100000…
…001011111111000000
312011121000201000112222
4302113200023333000
51341224314423424
640502240110212
73623121233204
oct622740137700
9164530630488
1054081404864
1120a325a7a23
12a593905368
13513b4c40a6
1428907d4b04
151617d49e5e
hexc9780bfc0

54081404864 has 28 divisors (see below), whose sum is σ = 107390147424. Its totient is φ = 27022470144.

The previous prime is 54081404863. The next prime is 54081404893. The reversal of 54081404864 is 46840418045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54081404863) 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 3 ways as a sum of consecutive naturals, for example, 188969 + ... + 379304.

It is an arithmetic number, because the mean of its divisors is an integer number (3835362408).

Almost surely, 254081404864 is an apocalyptic number.

It is an amenable number.

54081404864 is a deficient number, since it is larger than the sum of its proper divisors (53308742560).

54081404864 is a wasteful number, since it uses less digits than its factorization.

54081404864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569772 (or 569762 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 44.

The spelling of 54081404864 in words is "fifty-four billion, eighty-one million, four hundred four thousand, eight hundred sixty-four".

Divisors: 1 2 4 8 16 32 64 1487 2974 5948 11896 23792 47584 95168 568273 1136546 2273092 4546184 9092368 18184736 36369472 845021951 1690043902 3380087804 6760175608 13520351216 27040702432 54081404864