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52011761 = 297272467
BaseRepresentation
bin1100011001101…
…0001011110001
310121212110201112
43012122023301
5101303334021
65054443105
71201043534
oct306321361
9117773645
1052011761
11273a522a
1215503495
13aa10cb9
146c9ca1b
154875d5b
hex319a2f1

52011761 has 8 divisors (see below), whose sum is σ = 53901120. Its totient is φ = 50128848.

The previous prime is 52011749. The next prime is 52011767. The reversal of 52011761 is 16711025.

52011761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52011761 - 210 = 52010737 is a prime.

It is a super-2 number, since 2×520117612 = 5410446564642242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52011767) 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 7 ways as a sum of consecutive naturals, for example, 19850 + ... + 22316.

It is an arithmetic number, because the mean of its divisors is an integer number (6737640).

Almost surely, 252011761 is an apocalyptic number.

It is an amenable number.

52011761 is a deficient number, since it is larger than the sum of its proper divisors (1889359).

52011761 is a wasteful number, since it uses less digits than its factorization.

52011761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 52011761 is about 7211.9179834493. The cubic root of 52011761 is about 373.2792533449.

Adding to 52011761 its reverse (16711025), we get a palindrome (68722786).

The spelling of 52011761 in words is "fifty-two million, eleven thousand, seven hundred sixty-one".

Divisors: 1 29 727 2467 21083 71543 1793509 52011761