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55108249 = 711936599
BaseRepresentation
bin1101001000111…
…0001010011001
310211200210022021
43102032022121
5103101430444
65245054441
71236261310
oct322161231
9124623267
1055108249
112911a709
1216557421
13b556541
147467277
154c88584
hex348e299

55108249 has 8 divisors (see below), whose sum is σ = 63043200. Its totient is φ = 47188896.

The previous prime is 55108247. The next prime is 55108279. The reversal of 55108249 is 94280155.

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 55108249 - 21 = 55108247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55108247) 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, 5052 + ... + 11650.

It is an arithmetic number, because the mean of its divisors is an integer number (7880400).

Almost surely, 255108249 is an apocalyptic number.

It is an amenable number.

55108249 is a deficient number, since it is larger than the sum of its proper divisors (7934951).

55108249 is a wasteful number, since it uses less digits than its factorization.

55108249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7799.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 55108249 is about 7423.4930457299. The cubic root of 55108249 is about 380.5445769977.

The spelling of 55108249 in words is "fifty-five million, one hundred eight thousand, two hundred forty-nine".

Divisors: 1 7 1193 6599 8351 46193 7872607 55108249