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55104245 = 579716231
BaseRepresentation
bin1101001000110…
…1001011110101
310211200120210222
43102031023311
5103101313440
65245024125
71236243530
oct322151365
9124616728
1055104245
11291176a9
1216555045
13b554781
147465a17
154c872b5
hex348d2f5

55104245 has 16 divisors (see below), whose sum is σ = 76355328. Its totient is φ = 37393920.

The previous prime is 55104241. The next prime is 55104253. The reversal of 55104245 is 54240155.

It is not a de Polignac number, because 55104245 - 22 = 55104241 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55104241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4721 + ... + 11510.

It is an arithmetic number, because the mean of its divisors is an integer number (4772208).

Almost surely, 255104245 is an apocalyptic number.

It is an amenable number.

55104245 is a deficient number, since it is larger than the sum of its proper divisors (21251083).

55104245 is a wasteful number, since it uses less digits than its factorization.

55104245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16340.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 55104245 is about 7423.2233564672. The cubic root of 55104245 is about 380.5353603655.

The spelling of 55104245 in words is "fifty-five million, one hundred four thousand, two hundred forty-five".

Divisors: 1 5 7 35 97 485 679 3395 16231 81155 113617 568085 1574407 7872035 11020849 55104245