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52144471 = 1031812797
BaseRepresentation
bin1100011011101…
…0100101010111
310122010012202201
43012322211113
5101322110341
65101345331
71202135461
oct306724527
9118105681
1052144471
1127485a05
1215568247
13aa59522
146cd5131
1548a0331
hex31ba957

52144471 has 8 divisors (see below), whose sum is σ = 52960544. Its totient is φ = 51334560.

The previous prime is 52144453. The next prime is 52144513. The reversal of 52144471 is 17444125.

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 52144471 - 27 = 52144343 is a prime.

It is a super-3 number, since 3×521444713 (a number of 24 digits) contains 333 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 (52144441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17245 + ... + 20041.

It is an arithmetic number, because the mean of its divisors is an integer number (6620068).

Almost surely, 252144471 is an apocalyptic number.

52144471 is a deficient number, since it is larger than the sum of its proper divisors (816073).

52144471 is a wasteful number, since it uses less digits than its factorization.

52144471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3081.

The product of its digits is 4480, while the sum is 28.

The square root of 52144471 is about 7221.1128643721. The cubic root of 52144471 is about 373.5964624772.

Adding to 52144471 its reverse (17444125), we get a palindrome (69588596).

The spelling of 52144471 in words is "fifty-two million, one hundred forty-four thousand, four hundred seventy-one".

Divisors: 1 103 181 2797 18643 288091 506257 52144471