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55824013 = 7231013433
BaseRepresentation
bin1101010011110…
…0111010001101
310220001011011001
43110330322031
5103242332023
65312300301
71245332140
oct324747215
9126034131
1055824013
1129569453
1216841691
13b74727b
1475b2057
154d7a6ad
hex353ce8d

55824013 has 16 divisors (see below), whose sum is σ = 67251456. Its totient is φ = 45302400.

The previous prime is 55824011. The next prime is 55824029. The reversal of 55824013 is 31042855.

It is a cyclic number.

It is not a de Polignac number, because 55824013 - 21 = 55824011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55824011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14545 + ... + 17977.

It is an arithmetic number, because the mean of its divisors is an integer number (4203216).

Almost surely, 255824013 is an apocalyptic number.

It is an amenable number.

55824013 is a deficient number, since it is larger than the sum of its proper divisors (11427443).

55824013 is a wasteful number, since it uses less digits than its factorization.

55824013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 55824013 is about 7471.5468947200. The cubic root of 55824013 is about 382.1850409675.

Adding to 55824013 its reverse (31042855), we get a palindrome (86866868).

The spelling of 55824013 in words is "fifty-five million, eight hundred twenty-four thousand, thirteen".

Divisors: 1 7 23 101 161 707 2323 3433 16261 24031 78959 346733 552713 2427131 7974859 55824013