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55884187 = 198833331
BaseRepresentation
bin1101010100101…
…1100110011011
310220011012200201
43111023212123
5103301243222
65313443031
71246002442
oct325134633
9126135621
1055884187
11295aa687
1216870477
13b768788
1475c9d59
154d8d427
hex354b99b

55884187 has 8 divisors (see below), whose sum is σ = 58909760. Its totient is φ = 52867080.

The previous prime is 55884173. The next prime is 55884197. The reversal of 55884187 is 78148855.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55884187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55884137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15112 + ... + 18442.

It is an arithmetic number, because the mean of its divisors is an integer number (7363720).

Almost surely, 255884187 is an apocalyptic number.

55884187 is a deficient number, since it is larger than the sum of its proper divisors (3025573).

55884187 is a wasteful number, since it uses less digits than its factorization.

55884187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233.

The product of its digits is 358400, while the sum is 46.

The square root of 55884187 is about 7475.5726870923. The cubic root of 55884187 is about 382.3223136999.

The spelling of 55884187 in words is "fifty-five million, eight hundred eighty-four thousand, one hundred eighty-seven".

Divisors: 1 19 883 3331 16777 63289 2941273 55884187