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54083864491 = 331439467797
BaseRepresentation
bin110010010111101001…
…100100011110101011
312011121012022222112021
4302113221210132223
51341230432130431
640502404525311
73623151156136
oct622751443653
9164535288467
1054083864491
1120a33a27978
12a5946b0837
13513bb757a7
142890c7521d
151618183b11
hexc97a647ab

54083864491 has 16 divisors (see below), whose sum is σ = 54555621120. Its totient is φ = 53615089440.

The previous prime is 54083864467. The next prime is 54083864503. The reversal of 54083864491 is 19446838045.

It is a cyclic number.

It is not a de Polignac number, because 54083864491 - 219 = 54083340203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54083864431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67858905 + ... + 67859701.

It is an arithmetic number, because the mean of its divisors is an integer number (3409726320).

Almost surely, 254083864491 is an apocalyptic number.

54083864491 is a deficient number, since it is larger than the sum of its proper divisors (471756629).

54083864491 is a wasteful number, since it uses less digits than its factorization.

54083864491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034.

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 54083864491 in words is "fifty-four billion, eighty-three million, eight hundred sixty-four thousand, four hundred ninety-one".

Divisors: 1 331 439 467 797 145309 154577 205013 263807 349883 372199 67859303 115811273 123197869 163395361 54083864491