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54987712105 = 534673172063
BaseRepresentation
bin110011001101100001…
…011110011001101001
312020221012002012100211
4303031201132121221
51400103323241410
641132213301121
73654434561314
oct631541363151
9166835065324
1054987712105
1121358147a77
12a7a73347a1
1352541b8571
142938d1397b
15166c6c068a
hexccd85e669

54987712105 has 8 divisors (see below), whose sum is σ = 66004307712. Its totient is φ = 43977467568.

The previous prime is 54987712103. The next prime is 54987712189. The reversal of 54987712105 is 50121778945.

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

It is a cyclic number.

It is not a de Polignac number, because 54987712105 - 21 = 54987712103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54987712103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1568697 + ... + 1603366.

It is an arithmetic number, because the mean of its divisors is an integer number (8250538464).

Almost surely, 254987712105 is an apocalyptic number.

It is an amenable number.

54987712105 is a deficient number, since it is larger than the sum of its proper divisors (11016595607).

54987712105 is a wasteful number, since it uses less digits than its factorization.

54987712105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3175535.

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 54987712105 in words is "fifty-four billion, nine hundred eighty-seven million, seven hundred twelve thousand, one hundred five".

Divisors: 1 5 3467 17335 3172063 15860315 10997542421 54987712105