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55345494800 = 2452138363737
BaseRepresentation
bin110011100010110110…
…010011101100010000
312021212010022102221202
4303202312103230100
51401321421313200
641231514010332
73666340641461
oct634266235420
9167763272852
1055345494800
11215210a8452
12a8871169a8
1352b0367cbb
142970648d68
15168dce51d5
hexce2d93b10

55345494800 has 30 divisors (see below), whose sum is σ = 132967552218. Its totient is φ = 22138197760.

The previous prime is 55345494791. The next prime is 55345494811. The reversal of 55345494800 is 849454355.

It can be written as a sum of positive squares in 3 ways, for example, as 16753678096 + 38591816704 = 129436^2 + 196448^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 69181469 + ... + 69182268.

Almost surely, 255345494800 is an apocalyptic number.

55345494800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55345494800 is an abundant number, since it is smaller than the sum of its proper divisors (77622057418).

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

55345494800 is a wasteful number, since it uses less digits than its factorization.

55345494800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138363755 (or 138363744 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 55345494800 in words is "fifty-five billion, three hundred forty-five million, four hundred ninety-four thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 138363737 276727474 553454948 691818685 1106909896 1383637370 2213819792 2767274740 3459093425 5534549480 6918186850 11069098960 13836373700 27672747400 55345494800