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55041243 = 3103178127
BaseRepresentation
bin1101000111110…
…1110011011011
310211120101101120
43101331303123
5103042304433
65243420323
71235562045
oct321756333
9124511346
1055041243
1129084334
12165246a3
13b531baa
14744aa95
154c737b3
hex347dcdb

55041243 has 8 divisors (see below), whose sum is σ = 74101248. Its totient is φ = 36337704.

The previous prime is 55041241. The next prime is 55041253. The reversal of 55041243 is 34214055.

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

It is not a de Polignac number, because 55041243 - 21 = 55041241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55041241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88755 + ... + 89372.

It is an arithmetic number, because the mean of its divisors is an integer number (9262656).

Almost surely, 255041243 is an apocalyptic number.

55041243 is a deficient number, since it is larger than the sum of its proper divisors (19060005).

55041243 is a wasteful number, since it uses less digits than its factorization.

55041243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178233.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 55041243 is about 7418.9785685093. The cubic root of 55041243 is about 380.3902800034.

Adding to 55041243 its reverse (34214055), we get a palindrome (89255298).

The spelling of 55041243 in words is "fifty-five million, forty-one thousand, two hundred forty-three".

Divisors: 1 3 103 309 178127 534381 18347081 55041243