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55788043 = 93759539
BaseRepresentation
bin1101010011010…
…0001000001011
310212222022210211
43110310020023
5103240204133
65311421551
71245122233
oct324641013
9125868724
1055788043
1129544423
12168248b7
13b733a9c
1475a2cc3
154d6ebcd
hex353420b

55788043 has 4 divisors (see below), whose sum is σ = 55848520. Its totient is φ = 55727568.

The previous prime is 55788023. The next prime is 55788049. The reversal of 55788043 is 34088755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55788043 - 29 = 55787531 is a prime.

It is a super-2 number, since 2×557880432 = 6224611483539698, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55787987 and 55788005.

It is not an unprimeable number, because it can be changed into a prime (55788049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28833 + ... + 30706.

It is an arithmetic number, because the mean of its divisors is an integer number (13962130).

Almost surely, 255788043 is an apocalyptic number.

55788043 is a deficient number, since it is larger than the sum of its proper divisors (60477).

55788043 is an equidigital number, since it uses as much as digits as its factorization.

55788043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60476.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 55788043 is about 7469.1393747874. The cubic root of 55788043 is about 382.1029368162.

The spelling of 55788043 in words is "fifty-five million, seven hundred eighty-eight thousand, forty-three".

Divisors: 1 937 59539 55788043