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55200033 = 327876191
BaseRepresentation
bin1101001010010…
…0100100100001
310211212110012200
43102210210201
5103112400113
65251043413
71240123020
oct322444441
9124773180
1055200033
1129182669
12165a0569
13b589255
14748c8b7
154ca5873
hex34a4921

55200033 has 12 divisors (see below), whose sum is σ = 91123968. Its totient is φ = 31542840.

The previous prime is 55200011. The next prime is 55200053. The reversal of 55200033 is 33000255.

It is not a de Polignac number, because 55200033 - 28 = 55199777 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55199979 and 55200015.

It is not an unprimeable number, because it can be changed into a prime (55200053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 438033 + ... + 438158.

It is an arithmetic number, because the mean of its divisors is an integer number (7593664).

Almost surely, 255200033 is an apocalyptic number.

It is an amenable number.

55200033 is a deficient number, since it is larger than the sum of its proper divisors (35923935).

55200033 is a wasteful number, since it uses less digits than its factorization.

55200033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876204 (or 876201 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 18.

The square root of 55200033 is about 7429.6724692277. The cubic root of 55200033 is about 380.7557282679.

Adding to 55200033 its reverse (33000255), we get a palindrome (88200288).

The spelling of 55200033 in words is "fifty-five million, two hundred thousand, thirty-three".

Divisors: 1 3 7 9 21 63 876191 2628573 6133337 7885719 18400011 55200033