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55071849 = 372622469
BaseRepresentation
bin1101001000010…
…1010001101001
310211121221101010
43102011101221
5103044244344
65244214133
71236050220
oct322052151
9124557333
1055071849
11290a5328
121653a349
13b542ac1
147457cb7
154c7c8b9
hex3485469

55071849 has 8 divisors (see below), whose sum is σ = 83919040. Its totient is φ = 31469616.

The previous prime is 55071833. The next prime is 55071853. The reversal of 55071849 is 94817055.

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

It is not a de Polignac number, because 55071849 - 24 = 55071833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55071829) 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 7 ways as a sum of consecutive naturals, for example, 1311214 + ... + 1311255.

It is an arithmetic number, because the mean of its divisors is an integer number (10489880).

Almost surely, 255071849 is an apocalyptic number.

It is an amenable number.

55071849 is a deficient number, since it is larger than the sum of its proper divisors (28847191).

55071849 is a wasteful number, since it uses less digits than its factorization.

55071849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622479.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 55071849 is about 7421.0409647165. The cubic root of 55071849 is about 380.4607730073.

The spelling of 55071849 in words is "fifty-five million, seventy-one thousand, eight hundred forty-nine".

Divisors: 1 3 7 21 2622469 7867407 18357283 55071849