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552145243 = 13971732531
BaseRepresentation
bin100000111010010…
…001000101011011
31102110221212212211
4200322101011123
52112322121433
6130442215551
716453104616
oct4072210533
91373855784
10552145243
11263742991
12134ab45b7
138a511a80
145348b17d
15337188cd
hex20e9115b

552145243 has 16 divisors (see below), whose sum is σ = 604459296. Its totient is φ = 501304320.

The previous prime is 552145229. The next prime is 552145249. The reversal of 552145243 is 342541255.

It is a cyclic number.

It is not a de Polignac number, because 552145243 - 217 = 552014171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552145249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216888 + ... + 219418.

It is an arithmetic number, because the mean of its divisors is an integer number (37778706).

Almost surely, 2552145243 is an apocalyptic number.

552145243 is a deficient number, since it is larger than the sum of its proper divisors (52314053).

552145243 is a wasteful number, since it uses less digits than its factorization.

552145243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2814.

The product of its digits is 24000, while the sum is 31.

The square root of 552145243 is about 23497.7710219501. The cubic root of 552145243 is about 820.3851269427.

Adding to 552145243 its reverse (342541255), we get a palindrome (894686498).

The spelling of 552145243 in words is "five hundred fifty-two million, one hundred forty-five thousand, two hundred forty-three".

Divisors: 1 13 97 173 1261 2249 2531 16781 32903 218153 245507 437863 3191591 5692219 42472711 552145243