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564331031 = 111718116673
BaseRepresentation
bin100001101000110…
…000001000010111
31110022212222122022
4201220300020113
52123432043111
6131555323355
716661506655
oct4150601027
91408788568
10564331031
1126a606290
12138bb055b
138cbba4b4
1454d3ddd5
15348242db
hex21a30217

564331031 has 16 divisors (see below), whose sum is σ = 655488288. Its totient is φ = 480153600.

The previous prime is 564331007. The next prime is 564331043. The reversal of 564331031 is 130133465.

It is a cyclic number.

It is not a de Polignac number, because 564331031 - 222 = 560136727 is a prime.

It is a super-2 number, since 2×5643310312 = 636939025099045922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564331091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25511 + ... + 42183.

It is an arithmetic number, because the mean of its divisors is an integer number (40968018).

Almost surely, 2564331031 is an apocalyptic number.

564331031 is a deficient number, since it is larger than the sum of its proper divisors (91157257).

564331031 is a wasteful number, since it uses less digits than its factorization.

564331031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16882.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 564331031 is about 23755.6526115365. The cubic root of 564331031 is about 826.3765356044.

Adding to 564331031 its reverse (130133465), we get a palindrome (694464496).

The spelling of 564331031 in words is "five hundred sixty-four million, three hundred thirty-one thousand, thirty-one".

Divisors: 1 11 17 181 187 1991 3077 16673 33847 183403 283441 3017813 3117851 33195943 51302821 564331031