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55005069 = 372619289
BaseRepresentation
bin1101000111010…
…0111110001101
310211111112202210
43101310332031
5103040130234
65242541033
71235351430
oct321647615
9124445683
1055005069
112905a139
1216507779
13b51b5a2
14743b817
154c67be9
hex3474f8d

55005069 has 8 divisors (see below), whose sum is σ = 83817280. Its totient is φ = 31431456.

The previous prime is 55005037. The next prime is 55005073. The reversal of 55005069 is 96050055.

It is a happy number.

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

It is not a de Polignac number, because 55005069 - 25 = 55005037 is a prime.

It is a super-2 number, since 2×550050692 = 6051115231389522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55005079) 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, 1309624 + ... + 1309665.

It is an arithmetic number, because the mean of its divisors is an integer number (10477160).

Almost surely, 255005069 is an apocalyptic number.

It is an amenable number.

55005069 is a deficient number, since it is larger than the sum of its proper divisors (28812211).

55005069 is a wasteful number, since it uses less digits than its factorization.

55005069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619299.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 55005069 is about 7416.5402311320. The cubic root of 55005069 is about 380.3069288482.

The spelling of 55005069 in words is "fifty-five million, five thousand, sixty-nine".

Divisors: 1 3 7 21 2619289 7857867 18335023 55005069