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55208241 = 32113117989
BaseRepresentation
bin1101001010011…
…0100100110001
310211212212110200
43102212210301
5103113130431
65251145413
71240155654
oct322464461
9124785420
1055208241
1129188850
12165a5269
13b58cbca
14749189b
154ca7ee6
hex34a6931

55208241 has 24 divisors (see below), whose sum is σ = 89806080. Its totient is φ = 32378400.

The previous prime is 55208239. The next prime is 55208249. The reversal of 55208241 is 14280255.

It is a happy number.

It is not a de Polignac number, because 55208241 - 21 = 55208239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55208249) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5926 + ... + 12063.

It is an arithmetic number, because the mean of its divisors is an integer number (3741920).

Almost surely, 255208241 is an apocalyptic number.

It is an amenable number.

55208241 is a deficient number, since it is larger than the sum of its proper divisors (34597839).

55208241 is a wasteful number, since it uses less digits than its factorization.

55208241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18037 (or 18034 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 55208241 is about 7430.2248283615. The cubic root of 55208241 is about 380.7745995617.

Adding to 55208241 its reverse (14280255), we get a palindrome (69488496).

The spelling of 55208241 in words is "fifty-five million, two hundred eight thousand, two hundred forty-one".

Divisors: 1 3 9 11 31 33 93 99 279 341 1023 3069 17989 53967 161901 197879 557659 593637 1672977 1780911 5018931 6134249 18402747 55208241