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561246313 = 171311511669
BaseRepresentation
bin100001011100111…
…111000001101001
31110010002021012111
4201130333001221
52122134340223
6131405242321
716623341425
oct4134770151
91403067174
10561246313
11268899731
12137b633a1
138c37a414
1454779b85
153441530d
hex2173f069

561246313 has 16 divisors (see below), whose sum is σ = 603123840. Its totient is φ = 520416000.

The previous prime is 561246311. The next prime is 561246353. The reversal of 561246313 is 313642165.

561246313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 561246313 - 21 = 561246311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561246311) 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, 335443 + ... + 337111.

It is an arithmetic number, because the mean of its divisors is an integer number (37695240).

Almost surely, 2561246313 is an apocalyptic number.

It is an amenable number.

561246313 is a deficient number, since it is larger than the sum of its proper divisors (41877527).

561246313 is a wasteful number, since it uses less digits than its factorization.

561246313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968.

The product of its digits is 12960, while the sum is 31.

The square root of 561246313 is about 23690.6376655421. The cubic root of 561246313 is about 824.8680844484.

Adding to 561246313 its reverse (313642165), we get a palindrome (874888478).

The spelling of 561246313 in words is "five hundred sixty-one million, two hundred forty-six thousand, three hundred thirteen".

Divisors: 1 17 131 151 1669 2227 2567 19781 28373 218639 252019 336277 3716863 4284323 33014489 561246313