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55104155 = 516765993
BaseRepresentation
bin1101001000110…
…1001010011011
310211200120200122
43102031022123
5103101313110
65245023455
71236243341
oct322151233
9124616618
1055104155
1129117627
1216554b8b
13b554712
147465991
154c87255
hex348d29b

55104155 has 8 divisors (see below), whose sum is σ = 66521952. Its totient is φ = 43818688.

The previous prime is 55104149. The next prime is 55104197. The reversal of 55104155 is 55140155.

55104155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55104155 - 28 = 55103899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32162 + ... + 33831.

It is an arithmetic number, because the mean of its divisors is an integer number (8315244).

Almost surely, 255104155 is an apocalyptic number.

55104155 is a deficient number, since it is larger than the sum of its proper divisors (11417797).

55104155 is a wasteful number, since it uses less digits than its factorization.

55104155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66165.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 55104155 is about 7423.2172944081. The cubic root of 55104155 is about 380.5351531933.

The spelling of 55104155 in words is "fifty-five million, one hundred four thousand, one hundred fifty-five".

Divisors: 1 5 167 835 65993 329965 11020831 55104155