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52261311 = 318779281
BaseRepresentation
bin1100011101011…
…1000110111111
310122100011001010
43013113012333
5101334330221
65104050303
71203133224
oct307270677
9118304033
1052261311
1127555773
1215603993
13aa9a76b
146d2594b
1548c4c76
hex31d71bf

52261311 has 8 divisors (see below), whose sum is σ = 69726384. Its totient is φ = 34818560.

The previous prime is 52261309. The next prime is 52261331. The reversal of 52261311 is 11316225.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52261311 - 21 = 52261309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52261301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991 + ... + 10271.

It is an arithmetic number, because the mean of its divisors is an integer number (8715798).

Almost surely, 252261311 is an apocalyptic number.

52261311 is a deficient number, since it is larger than the sum of its proper divisors (17465073).

52261311 is a wasteful number, since it uses less digits than its factorization.

52261311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11161.

The product of its digits is 360, while the sum is 21.

The square root of 52261311 is about 7229.1985032920. The cubic root of 52261311 is about 373.8752932427.

Adding to 52261311 its reverse (11316225), we get a palindrome (63577536).

The spelling of 52261311 in words is "fifty-two million, two hundred sixty-one thousand, three hundred eleven".

Divisors: 1 3 1877 5631 9281 27843 17420437 52261311