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54895020851 = 1123732972279
BaseRepresentation
bin110011000111111111…
…111000101100110011
312020200201122222212102
4303013333320230303
51344411111131401
641115102451015
73652230656366
oct630777705463
9166621588772
1054895020851
112130a898730
12a780293a6b
13523ac33678
14292a8a60dd
1516644b156b
hexcc7ff8b33

54895020851 has 16 divisors (see below), whose sum is σ = 63345231360. Its totient is φ = 47080883520.

The previous prime is 54895020839. The next prime is 54895020853. The reversal of 54895020851 is 15802059845.

It is not a de Polignac number, because 54895020851 - 218 = 54894758707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54895020796 and 54895020805.

It is not an unprimeable number, because it can be changed into a prime (54895020853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1467671 + ... + 1504608.

It is an arithmetic number, because the mean of its divisors is an integer number (3959076960).

Almost surely, 254895020851 is an apocalyptic number.

54895020851 is a deficient number, since it is larger than the sum of its proper divisors (8450210509).

54895020851 is a wasteful number, since it uses less digits than its factorization.

54895020851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972386.

The product of its (nonzero) digits is 576000, while the sum is 47.

The spelling of 54895020851 in words is "fifty-four billion, eight hundred ninety-five million, twenty thousand, eight hundred fifty-one".

Divisors: 1 11 23 73 253 803 1679 18469 2972279 32695069 68362417 216976367 751986587 2386740037 4990456441 54895020851