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54818181628 = 2271957792201
BaseRepresentation
bin110011000011011010…
…110001000111111100
312020111101002011021021
4303003122301013330
51344231423303003
641103315513524
73650305566340
oct630332610774
9166441064237
1054818181628
1121280486241
12a75a5b88a4
13522803bb82
1429205c3620
15165c8842bd
hexcc36b11fc

54818181628 has 12 divisors (see below), whose sum is σ = 109636363312. Its totient is φ = 23493506400.

The previous prime is 54818181611. The next prime is 54818181641. The reversal of 54818181628 is 82618181845.

54818181628 is an admirable number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 978896073 + ... + 978896128.

Almost surely, 254818181628 is an apocalyptic number.

It is an amenable number.

54818181628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54818181628 is a wasteful number, since it uses less digits than its factorization.

54818181628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957792212 (or 1957792210 counting only the distinct ones).

The product of its digits is 983040, while the sum is 52.

The spelling of 54818181628 in words is "fifty-four billion, eight hundred eighteen million, one hundred eighty-one thousand, six hundred twenty-eight".

Divisors: 1 2 4 7 14 28 1957792201 3915584402 7831168804 13704545407 27409090814 54818181628