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55005071 = 1118312731
BaseRepresentation
bin1101000111010…
…0111110001111
310211111112202212
43101310332033
5103040130241
65242541035
71235351432
oct321647617
9124445685
1055005071
112905a140
121650777b
13b51b5a4
14743b819
154c67beb
hex3474f8f

55005071 has 8 divisors (see below), whose sum is σ = 60060288. Its totient is φ = 49959000.

The previous prime is 55005037. The next prime is 55005073. The reversal of 55005071 is 17050055.

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 55005071 - 218 = 54742927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005073) 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, 18776 + ... + 21506.

It is an arithmetic number, because the mean of its divisors is an integer number (7507536).

Almost surely, 255005071 is an apocalyptic number.

55005071 is a deficient number, since it is larger than the sum of its proper divisors (5055217).

55005071 is a wasteful number, since it uses less digits than its factorization.

55005071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4573.

The product of its (nonzero) digits is 875, while the sum is 23.

The square root of 55005071 is about 7416.5403659658. The cubic root of 55005071 is about 380.3069334575.

The spelling of 55005071 in words is "fifty-five million, five thousand, seventy-one".

Divisors: 1 11 1831 2731 20141 30041 5000461 55005071