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52131441 = 317377147
BaseRepresentation
bin1100011011011…
…1011001110001
310122002112220010
43012313121301
5101321201231
65101205133
71202052465
oct306673161
9118075803
1052131441
112747713a
12155607a9
13aa5360b
146cd04a5
15489b546
hex31b7671

52131441 has 4 divisors (see below), whose sum is σ = 69508592. Its totient is φ = 34754292.

The previous prime is 52131419. The next prime is 52131449. The reversal of 52131441 is 14413125.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52131441 - 213 = 52123249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52131449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8688571 + ... + 8688576.

It is an arithmetic number, because the mean of its divisors is an integer number (17377148).

Almost surely, 252131441 is an apocalyptic number.

It is an amenable number.

52131441 is a deficient number, since it is larger than the sum of its proper divisors (17377151).

52131441 is a wasteful number, since it uses less digits than its factorization.

52131441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17377150.

The product of its digits is 480, while the sum is 21.

The square root of 52131441 is about 7220.2105924966. The cubic root of 52131441 is about 373.5653414568.

Adding to 52131441 its reverse (14413125), we get a palindrome (66544566).

The spelling of 52131441 in words is "fifty-two million, one hundred thirty-one thousand, four hundred forty-one".

Divisors: 1 3 17377147 52131441